I know this has probably already been discussed but I can't find anything that actually helps resolve my problem.

I bought Sins Trinity a couple of months back at GAME (UK shop) and after last night I finally managed to find out how to and where to, register my  game and download the SD downloader thing and thought everything was now good to go, WRONG. Trinity 1.37 update via SD Central can't find the game and the full installer won't install because I apparently have less than 1Gb RAM also the ingame Update button launches that stupid LAMESTOP app which won't allow the game to be registered anymore. I'm guessing the problem with the 1.37 update is that it seems to be for 1.3 but I can't find anyway to get the previous updates I.E. 1.2 and so on. In the bottom corner of the game when its launched it shows my version as Trinity 1.00