Here is a screenshot of what I'm trying to accomplish.

By messing around rather blindly in Blender, I'm attempting to get this texture onto the mesh. But so far, I have no idea how to get it applied. This is really as far as I can get at the moment. Any help will be greatly appreciated.

http://img714.imageshack.us/i/94843900.jpg/

See, after selecting everything on the mask in Edit Mode, I selected "U" and told it to "unwrap", having that image appear in the UV Image editor window. In the UV/image editor window I went to image -> open -> the test texture that I pretty much just took from Google Images as I'm testing this out, I didn't want to work too hard on something. However, I don't know how to apply this to the mesh now.

I think it is generally a good idea to start from the beginning when learning a new program. I know you want your mask and you want it now, but in the end you will get stuck after every step you make and you will not really understand most of what you're doing. So maybe after a lot of forum posts here you will get a low quality mask in game at some point, but the next time you try to do something else you'll be stuck again. Invest a few days to learn how to use Blender, then try to make your mask. The final result will look much better and you will know how to use Blender for everything else you may want to do later as well.

I think the 'official' tutorial is http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro. There are also a lot of tutorials specifically for Oblivion on the Wiki, see http://cs.elderscrolls.com/constwiki/index.php/Category:Modeling_Tutorials.

Of course that doesn't mean you shouldn't ask for help here if you're stuck. But it's easier to help someone who is working through a tutorial and doesn't understand one part of that tutorial than it is to help someone who basically doesn't know anything about the program he tries to use and wants to learn it by doing. Which is not really recommended for a complex program like Blender.

You're right, I just need to be patient and learn things step by step. But oh well. I have tried reading through tutorials on this but for some reason I simply can't figure out what to do. The person who wrote the tutorial is using an older version of Blender and is using Gimp, while I'm using a newer version of Blender and Photoshop. Part of me just wants to ask if someone will texture this for me, but I doubt anyone would and that's very lazy of me.

But I'll go ahead and ask, if anyone feels like texturing this for me I'll send you the mesh and then I'll figure the rest out on my own.

If you want to learn Blender based on the existing tutorials, make sure to use Blender version 2.49b or earlier. The 2.5x versions are still in alpha and, since the user interface has been completely redone, aren't really compatible with the existing tutorials.

Yeah, I was using 2.49b. The main issue is that apparently 2.49b no longer has the "UV" mode (alongside 'object mode' and 'edit mode' and such).

At this point I probably need to stop doing something out of my league. None of the tutorials I'm finding are really helping me with this. I'm not sure why. But I've read through the UV mapping and texture tutorials on both the Noob to Pro guide as well as the Oblivion specific guide. For some reason I can't find it relevant enough to what I'm doing. If someone wants to texture it for me I'd appreciate that very much. I'd probably even pay you for it if you've got paypal.

Yes, Blender from Versions 2.45 forward do UV mapping from the Edit mode. So, some older tutorials won't be useful for that. The tutorials referenced earlier at the TES Alliance are written for 2.45 to 2.49b. so you should be able to use them to learn the basics of UV mapping. It's not really that difficult, you just need a good, relevant tutorial and a little hard work on your part.

After messing with it more, I realize I simply don't know what I'm doing and none of the tutorials I'm finding are relevant enough to help.

I HAD a texture in Blender and I HAD it looking how I wanted it in the Blender render window but when I tried exporting as a .NIF I got an error "texture must be type of image or envmap" or something and it didn't export. O.o

I guess basically I'm a bit at a loss. All I want is a simple green color to slap on it right now. But I just can't figure it out for the life of me. XP

I might pick it up later if I find any relevent tutorials but it would probably be best if I just leave this as a request for anyone who feels like helping me with it. If anyone wants to texture it then please let me know.

UV mapping requires some trial and error and lots of trying just to familiarise with the results of various unwrapping techniques and bla bla bla...

What I mean to say is that when you press U, you get lots of unwrapping options. In that your particular case, I would get frontal ortho view of your mask and select U > Project from view or within bounds.
Then, I would check results and distort what needs (if it is necessary) distortion in UV map. Mainly scale along X and some grabbing along X for those faces that are too distorted.

My issue isn't really even distortion at all, since I'm trying to get just a basically solid green color over the entire mesh. My issue is actually getting SOMETHING on it. I have an image that can be applied but I don't exactly have the knowledge of actually applying it. I got an error when I tried to export it after the texture appeared 'correctly' on the mesh (when I viewed it in 'textured' mode). But then Blender gave me that error I mentioned and I couldn't export it.

Aeolian Mode THANK YOU VERY MUCH for posting about this program!

It might not be very good for creating models for in game use (Though the decimation scripts in Blender should be able to take care of that) but it is PERFECT for creating a high detail normal map based off of a low poly model. This program is everything Blender's sculpt function should have been. Easy, fast, and powerful. I'm going to use this along with xNormal to start really improving my meshes. Again, THANK YOU!

Edit-IT LETS YOU PAINT DIRECTLY ON THE MESH!!!!

I'm glad you found it useful. I was beginning to feel guilty for this topic since I started using it as my personal dumpfest for my frustrations with texturing my mesh. XD

Read again what I wrote and do that then.