Download Speed

I have up to 8mb broadband with BT but can only get upto 4.5 at the moment but my download speed through BitComet is helluva low, I used to have 1mb through NTL and it was a darn site quicker than what I am getting just now, do you have any suggestions on how to speed up my downloads, I seem to only be getting up to 30kbs at the moment, Broadband has been installed for about 1 month just now so i am running at 4.5mbs, please help, i dont want to wait 3 days for a movie to download

can someone please help me with uping my download rate

Go through the settings guide carefully.