I think Gimp 2.0 is the old version. So it actually might make a difference. If it is older then it is lacking in newer tools and improvement. I haven't had 2.0 and if it is the old one then I probably had it way back when. I guess it would not matter if you aren't going to be doing that much with pictures, but if you wish to do more advanced art then I recommend getting the newest version that is out.
You can also download brushes to your program which makes life a little bit simpler. But that depends on what you want to do exactly.