Well,
Mp3sugar came back after this short turn off period. Also, The day before the login problems I bought like 5 dollars in songs, and now I have those 5 dollars back in my account, so they did it well I guess

.
Anyway, this was a warning.
Mp3sugar haven't made any updates in their database and they don't look "healthy" (just search "Eyes of Eden"). When I've spend all my balance I will runaway to another mp3store. You should do the same if this situation doesn't change.
P.D. Sorry for my gramatical mistakes :P