Use the MD5 to compare your files first
Then install GWX
Install the hotfix -
http://files.filefront.com/GWX_Germa.../fileinfo.html
Install any other mods you want through JSGME
Then add SH3Commander
Add GWX specific SH3commander files to sh3commander
http://www.megaupload.com/?d=R3824YLO
Sit back and enjoy