I actually asked a rep on my hosting what version my server was running on, and he told me 5.4. I thought sweet, I'll buy this then, and I did. Turns out that he was wrong and I'm running a older version. Now, with the install I get this message: Now it says I can begin, but it also tells me I may have issues. What issues may I have? Is it worth giving it a shot? Or have I simply wasted my money?