not really sure if i have a link. but if you have uncompressed '.it, .s3m, .xm, .mod' formats (which i mean BEFORE they got to .j2b) you can use Modplug Tracker to Save as MP3. there is a encoder built in named 'LAME'.

i think i say some uncompressed ones at Loricentral.com. but those are early beta's i guess.