Some noob questions about the wallet..
Do I have to update or install the new wallet?
Or can I just stick with the older version?
+ How do I update without losing the coins in my old wallet?
When I update, I just get the new file. I delete the old one and then load the new one. It updates it and keeps the wallet.dat file so that you don't lose anything. I always backup the wallet.dat beforehand though, just in case. I'm not sure if you can keep the old one though.