I tried a trial version of Gamestudio about a year ago and now I'm thinking of getting it, I'd appreciate it if someone could first clear up a couple of issues for me...

First of all, if I get one version, is there a way to upgrade to a better version later, or do I have to buy a better version at full price? If this is the case, what is the best version of gamestudio for someone who is not sure that they are going to use it that much, but also don't want to be limited in the future if they do decide to use it alot (Does this question even make sense?) ?

Also, last time I checked this website it was very difficult to find help related to gamestudio, many tutorials were either in german or were outdated, with code that didn't work with current versions. Is this still the case? If I do get 3dgs, will there be enough information available for me to be able to use it? (By use it I mean actually program parts of the game, not just building generic levels.)

Any help would be greatly appreciated.