Why are you posting this? They've already told you what's up:
"Imlive.com is a respected and well-established website that pays its hosts and agents the monies that are due to them."
Never, ever question respected, well-established companies. I cannot believe that people ever had the nerve to question Enron!
If they said it didn't happen then it didn't happen! You must need your psych meds!
In all seriousness, good luck getting your money!
Here is a link to submit a request to their PR department:
http://imlive.com/PR.asp
I deal with PR people every day for one of my mainstream sites. If you end up dealing with a real PR person, they will bend over backwards to resolve your issue. Even more so if they know that you're about go get in touch with the adult news sites. ;)