I am willing for some mates that could help me answer the question - does game engine I use is working smooth on newest Windows 7 (32bit Edition,not for x64 processors ).

All you need is to grab a game : http://www.box.net/shared/ziqu6f2uo6
and post a "log.txt" in comments :)

You may also need a OGG Vorbis dlls if you don't have them already in /Windows/System32
http://www.box.net/shared/ziqu6f2uo6

A game runs smooth on Linux + Wine.