Maybe i share the wrong files, but it seems that i don't have any upload at all. Although i shared several GB.

And my download speed is usually very slow, too.

I don't think it's caused by my computer (AMD 1.6 XP, 256 MB DDR, Win2k) or the connection (DSL, 100kb d/l, 10kb u/l ? ). My upload speed is set to max.

Any ideas that might help?

I have the same problem. Very few uploads. When I used Bearshare I uploaded files all the time, about 1 megabyte per minute.
Now it is rare to see files being uploaded. Most of the time it is movies although most of my ~16 gigabytes are music.