What happens to my Windows 7 if I install it? 
Nothing? If you install it side by side your Windows 7 won't change.
I'm going to try running a Blockland server right now through Wine on this laptop.
I'm still having problems with installing stuff. Probably because everything is on a 2gb usb flashdrive?
This is why. If you want to install stuff, install it to a partition or Wubi it. Don't install stuff on the thumb drive, you'll get errors
My blockland server is now up. If anyone wants to, they can join, it's "MackTheHunter's Ubuntu-Running Freebuild"