For now, the files can be downloaded from
Scintilla source
http://www.scintilla.org/scintilla179.tgz
http://www.scintilla.org/scintilla179.zip
SciTE
http://www.scintilla.org/scite179.tgz source
http://www.scintilla.org/scite179.zip source
http://www.scintilla.org/Sc179.exe Windows single executable file
http://www.scintilla.org/wscite179.zip Windows executable with support files
http://www.scintilla.org/gscite179.tgz GTK+ Linux executable with support files
If the files still aren't accessible from SourceForge tomorrow,
I'll update all the download links.
Neil