Yes it seems they've terminated the community edition. How thoughtful of them. And as bad luck would have it, I think they only took it offline in the last few days. Isn't Sun wonderful!
I'm not sure what the filename for SunONE Studio4 ME was, but for Forte4 Mobile Edition (Win32) it was "ffj_me_win32.exe" and the filesize was 23,878,852 bytes. Having just done a quick search, I've located a copy here: http://www.yashka.dp.ua/download/SLIK/SDK/
There wasn't much difference between S1 4 ME and Forte4 ME. Although the S1 version had a few less bugs.