Guys,
it took me half a day to figger out what went wrong, but I have the answer to the language problem!
Do turn off the virus scanner and also your internetconnection, you never know what's coming in during this... (just control panel, network, disable or switch off). Leave it this way, even during game boot up!
Get a clean install, so if you already tried, remove those old folders and items you see with Paradox.
Here it comes: CHOOSE ENGLISH AS YOUR DEFAULT LANGUAGE!!! Not your own!
Make sure that Physx will be (re)installed. If you are installing again, it will remove it!
Also install Directx and Redinst2005.
Setup should go accordingly and when finished, don't try to start the game yet.
First copy the files from the SKIDROW MAIN folder, from the CD or image file you are browsing into the MAIN folder of SSE on your harddisk. Most files will be replaces, so choose yes, to all.
Then copy the Checklicensekey.dll from the SKIDROW Channels folder to the Channels folder as above, choose yes.
After that, try starting the game with the on screen logo or Questviewer logo in the harddrive folder. you might have to activate it by clicking the Q3D file.
It will take a minute to boot up, the SSE splash screen slider should move seconds and later on, a white screen appears. This is where your language error turned up and now there is a bar which asks for a keyword. Just fill out anything you like untill it's full.
Click continue and HAVE FUN!!!!