All is not lost There are alternatives available still. Have a look at slyck's guides http://www.slyck.com Also, WinMX may rise again - I don't use it myself but is this any good? http://www.vladd44.com/phpbb2/viewtopic.php?p=26688#26688
www.bearshare.com You can download the free version, which is sponsored by ads or you can pay a minimal amount and get the pop up free version. I use the free version and have done for the last two years. It's excellent.
I use emule a lot. Have had probs with bearshare recently... a few nasties creeping in, an loads of false virus riddled downloads. For example if you want some software programme, say Nero, there's loads on bearshare that are zips with a size of 850kb, or 752kb or summat like that. They're all in a long list together, size-wise. DO NOT DOWNLOAD THEM !!!! All poxed up to the eyeballs. But I do still use bearshare for music. Generally very good.
RE: I use emule a lot. Have had probs with bearshare recently... Mate of mine at works young un put bearshare on and got all sorts of crap on his pc had to go and clear it for him and delete bearshare. Not reccomended but don't know if anyone else has had the same problem??