You'll be pleased to know I've been working on a "Winamp Lyrics (Explorer Version) v1.22" clone and I got it pretty shapped up. And the best part: it WILL be writing directly in SYLT frames... ;-)

Right now, I've got all the functionnalities of the it (those who use it will understand: CTRL-L, CTRL-T and CTRL-D as well as CTRL-A and CTRL-B and CTRL-R) and even got millisecond timestamp option working. FF and REW are well handled and seeking by double-clicking a lyrics line also works...It currently only save to .lrc files but in the next 2 to 3 weeks, I plan to include the SYLT saving/reading. Will keep you informed... Just a little patience...