i'm a really huge fan too. so huge, in fact, that if i see any rare songs or demos of theirs, i just have GOT to download it.
sometimes, it never works, though. like there's this post here:
https://groups.google.com/forum/#!activity/alt.music.lynyrd-skynyrd/HibbnduSWoIJ/alt.music.lynyrd-skynyrd/GDKCeBQFncY/HibbnduSWoIJ
he's got recordings of them doing "taxman", "born on the bayou", "uneasy rider", "cottonmouth country (i think john lee's tape is different from the one we all know of)", etc. and i asked him to upload the stuff as music files through
sendspace.com & send me the link to download them. ted selke, a former black crowes bass guitarist, was a good friend of mine online, who introduced sendspace to me & sent me his audio/video recordings in that exact same process.
however, he never did so. damn! i really wanna hear them.