SHV Re-Installation Questions

[Cpt.Mads]

Alright, so here it goes. I'd like to re-install SHV to make sure it's clean and re-mod, etc...

Problems: <I don't want to un-install if I don't have a way to re-install the game, heh.>

1) I don't know where I bought the download from><. It's been well over a year since I bought this game.
1a) If I have my code, does it matter where I get the download from?
1b) If I have to get my download from the original place, is there anyway to find out within the installed folders, where I got the download?
1c) If I can use any official SHV download, where can I get one?

2) I mainly used the online save feature from ubisoft and use the points, so do I need to save some of the savegames?
2a) If so, what folders exactly do I need to save? i.e. just the My Doc Cfg folders?

3) Not sure how the reinstalls work for the developer... Do I have a certain number of installs?
3a) If I do, how can I go about saving my number of installs?

If you need any clarifications or have questions, please let me know
Thank You for your much needed assistance!

P.S. Unfortunately, I am at port in the game right now and don't want to start another patrol until I have this resolved