The reason it was made available unsplit was so that listeners could enjoy the LP as if they were there at the performance so both sides of the vinyl were joined to make it unbroken (at least that was what I was told when I uploaded it foe another member) rather than listening to a record and having to turn it over half way through.
Someone could always re-split it, I suppose. it's fairly simple to do (it would take me about 2 minutes).
MP3 files will not be of as good a quality as flac.
What bitrate have you ripped the album. ?
We do try for the best quality available here, I think so anything over 192 would probably be ok for most and we do often upload both flac and mp3 versions of a torrent. I didn't in this case as I didn't make the recording but was asked by someone like yourself to do it for them (as they were not an uploader).
I've passed your post on to the admins so you should hear from them
