BoeingBoy,
I do not know how well any of those accelerators actually work.
Before you spend your money on that program, look at this list:
Dial-up & Connectivity Search from Download.com
You should be able to find other programs in there that might work for you.
Also, if you do not play games, you could always get Satellite Internet Service. There is a lag from bouncing a signal off a 50 gallon drum 22 thousand miles in space, but once the data starts coming down, it is very fast. (Upload is still via 56k modem though.)
Take Care,
Richard