I have EXACTLY the same problem!!
Amule has never, ever downloaded at any rate faster than 6kb/s, which is poor considering I have a half-a-meg a second connection. Nicotine / Apollon have both been known to run at speeds up to 77kb/s for me! But aMule averages at 0.8kb/s, even on files which show 200 sources, and will often be "waiting" for a file for over 24 hours... and people are uploading from me at 15kb/s ALL the time.
Also, when running aMule, web browsing is so slow - I've never actually been timed out, but have come pretty close. Mind you, Nicotine does this too on my system.
I am even more of a newbie, and really don't understand complicated shell scripts etc. I use Mandrake 10 and I installed aMule through Rpmdrake, their imitation debian thing. Could this be why it's not performing properly?
I have good ID at least -- I've been uploading to people at a solid 15 kb/s for about 5 days of uptime now. In that time, aMule has been on all the time, and I've managed to download a total of 300mb. Oh yeah, I'm using aMule 1.2.6, by the way.
PLEASE HELP!!!! I'm sure there are lots more with this problem.......