...my practical advice for you to avoid the frustrations of lopsided sharing on WinMX.
Go into 'trading mode' by setting your Max total uploads (Settings | File Transfers | Queuing) to 1. When you start getting people into queue take your time to check their libraries and start uploads manually only for those you judge to deserve them.
Set your max upload bandwidth (Settings | File Transfers | Bandwidth Throttle | Limit outgoing bandwidth) according to your cable upload bandwidth cap. If your uploads are capped at 128 kbit/s, 13.000 bytes/s is a good value in WinMX. For 256 kbit/s cap, set your throttle to 25.000 bytes/s. The idea is to leave some upload bandwidth for your own needs so that your own downloads do not suffer.
Do not limit your download bandwidth in WinMX.
See my further download tips in
this thread.
- tg