So here's a picture of the error message I get when I enter my password.

It says: "711 - Invalid class string. Looking for object with ProgID: swiftirc.swiftircclient"
I've tried un-installing and re-installing a million times including deleting the original download file and all the SwiftKit files in my Program Files folder. If I un-install and re-install, it will work for a small amount of time until it mysteriously stops working again and I get that same error message.
Any ideas or suggestions would be helpful.
P.S. This is off-topic, but I have an illegal version of Windows 7, so what's the program that gets rid of all the messages and shit that comes up because of that?