So back in Dec I bought Oblivion and Morrowind on Steam during that big sale.

I didn't even know about the deluxe stuff until now, I've always played on the console. So I really didn't go much beyond the pic. 15 for both ES I bite quick. Now I can't tell what version I have. Steam says I own both but it only reads "The Elder Scrolls IV: Oblivion" in the library and "Oblivion Game of the Year" under my account. Is there anyway to tell what version I have? Or does anyone that own the Deluxe know if Steam says Deluxe or not?

Also are all these http://www.uesp.net/wiki/Oblivion:Recommended_Mods bug fixes safe?

For the answer to your second question on the UOP's and WEPON, they are all safe and I actuallly use them myself.
I think the Deluxe version of Oblivion was the GOTY edition and the DLC, and maybe even Battlehorn, but most of my involvement with Steam is related to "will this work with a Steam version" questions.
If you are planning on adding mods to the Steam version of Oblivion, then you should install Valve outside of Program Files/Users or any Non user created "Games" folder on your hard drive to avoid UAC issues.
This is a short example of a gaming C drive,
Games <--- Valve needs to be installed here
Program Files
Users
Windows
The Steam version can be buggy with a few OBSE dependant mods, and does not like the 4Gb patch being applied to run a heavily (200 plus) modded Load Order, but it will work with most mods and popular Utilities like Wrye Bash and OBMM.