I have searched repeatedly all over the south west area around Weathersly and have not
been able to find her? I gave the 20 pelts a while back and havent seen her since?

Bralsa can wander or chase deer for quite some distance. She can also get killed. Here is what we know of her that may be of help:

http://www.uesp.net/wiki/Oblivion:Destruction_Training

http://www.uesp.net/wiki/Oblivion:Bralsa_Andaren

I have waited three nights and she did not show up, which I assume she is dead. Is there any wy to bring her back into the game?

If you are on the PC you can use the following console commands

player.moveto 0018B121

then if she is dead, with the console open click on her corpse and enter

resurrect

(the tilde key "~" opens and closes the console).

If you are not on the PC, I don't think there is a way other than loading a save from before she died.

If she's been dead long enough, you won't find a corpse to click on, but PRID 0018B121 will make her "current" for the resurrect command.

I have followed the instruction and I get the message Brasla Andaran Picked Package Find ( ).
Also on top of console it Shows Brasla Andaran 0018B121 ""(00175725) is this a location?

Also how do u use resurrect command?

If her id is showing at the top, just type in the command "resurrect" (without the quotes of course).

What exactly happened when you did player.moveto 0018B121?

Did you find her body? Did your character change locations?

If you see her body, while in console mode just click on the body and type resurrect.

Or you can just enter the following commands:

prid 0018B121

resurrect

player.moveto 0018B121

Thanks for the assistance, I finally got it to work.

Thanks Again.

Have fun with the game. Cheers!