When your ISP throttles your bandwith..

[Adasel]

Hi folks.
I've reason to belive that my uk based provider BritishTelecom (BT) is deliberatly throttling the bandwith on people who use file sharing software, according to an old link from 2001
BT admits to bandwidth restrictions for file-sharing sites | The Register

No matter what i try, the downloads are either so slow or they are not happening at all. But what i am wondering is that if the service provider has done this intentionally, is there some kind of work-around ?.
I feel its totally wrong that some ISP's allow users to file share while others are missing out on a huge part of the internet.