Install an antivirus and do a full scan. I'd recommend ESET NOD32 for AV and ESS for a complete solution. Depending on how bad it is you may need to restore your PC or do a full format.
What can a link actually do though?
Isn't it just grabbing your ip, maybe some of your other computer's information? A link can't hack you unless you input something into it or download something?
I barely use MPGH IM, Send me a private message to reach me faster!
Also I currently don't sell anything!