You just need RTW + 1.2 + RTR5.2. Nothing else.

Well, almost nothing else. Until the 5.3 patch comes out, you need to make sure you have the lastest DivX codec, and there are a few "hotfixes" at twcenter.

See this thread for DivX info:
http://www.twcenter.net/forums/index...howtopic=22872

See this thread for the hotfixes:
http://www.twcenter.net/forums/index...howtopic=22878

However, the 5.3 patch should be out in a day or two, incorporating the above fixes and eliminating the DivX codec necessity.