[Kilerz]

Are there any programs that are free to download, that boost the internet speed? i currently have dsl but when 2 or more people are on it slows down the internet greatly. i know i can upgrade my at&t service but my dad doesnt want to pay more money for a faster speed. i do not know my current internet speed, it might be something like 300kbps but i dont know what that really means except for kilibites per second. is there a way to find out my internet speed? and is there a program that will boost my internetspeed? if so please tell me, and if its there is a free internet booster trial also tell me, i might be willing to spend to 20-30 dollars on the program.