I dont have anything in appdata...
Thats not possible, unless your Win7 is fucked up. Do Win + R enter %APPDATA% and klick ok. If that folder appears empty change your folder settings. More about the file here
https://en.bitcoin.it/wiki/PoclbmLiterally the only thing I have for GUI miner is on my desktop
You did install/have OpenCL, correct?
How to use:Extract the archive to anywhere (your desktop is fine) and double click the guiminer executable. If you have OpenCL set up correctly this should launch the GUI. If you get an error about OpenCL, you need to install an OpenCL package from your GPU vendor. For AMD/ATI cards you can get OpenCL
here.