First off, nope, not Sjoko's son. But have had the liberty of exchanging e-mails with Sjoko a few times, he's a cool guy.
High bit-rate mp3's ARE supported. As a matter of fact, the hi-fi is the exact copy of the file you upload. So if you upload a 256kb/s copy, it'll play at 256kb/s. The lo-fi permanently converts to 24kb/s for modem users however.
I will be adding a feature that will allow you to ad a 'super copy' of the song, with a high bit-rate for downloading etc., but in due time (June's the goal), some other things have to be done first. (Different formats other than mp3, including some loss-less codecs, will be supported eventually also)
As far as the frames, I assume you mean the flash menu on the left side? For the first bit, I may avoid the flash since it seems to cause some issues with certain browsers, but something similar, or better will come about eventually. Keep checking out that page, it'll show changes as I get ideas.
The download icon works only on those songs that the artists have said 'allow all user download' on. I have not completed a secure members only leech script yet, or found one available for a reasonable price. So, in essence, when you mouse over and see 'members only' on the download button, you can't download it (yet). This feature should be done by June as well.
Any thoughts on color scheme? Should I stick with sepia tones?