1. Are you both connecting to the same ISP, through the same connection?
2. what are the speed differences in your processors?
3. Are you downloading from the same locations?
4. What are the sizes of downloads and how much time total does it take for an identical download of the same file from the same location?
Answer these and we may be able to give you a reason.
Also, downloaders may only appear to give you a speed boost. Depends upon the system overhead, the connection and the program.
i cant find any
i get a lousy speed while my friend w/ windows 7 and idm (internet download manager) gets a much better download speed