Releases on August 21st, 2008 and before

github
GNOME/gimp on GitHub GIMP_2_5_3
sourceforge
winmerge on SourceForge alpha/2.11.1.4/WinMerge-2.11.1.4-src.zip alpha/2.11.1.4/WinMerge-2.11.1.4-src.7z alpha/2.11.1.4/WinMerge-2.11.1.4-exe.7z alpha/2.11.1.4/WinMerge-2.11.1.4-exe.zip alpha/2.11.1.4/Runtimes-2.11.1.4.zip alpha/2.11.1.4/Runtimes-2.11.1.4.7z alpha/2.11.1.4/WinMerge-2.11.1.4-Setup.exe
github
GNOME/gimp on GitHub GIMP_2_4_7
github
FarGroup/FarManager on GitHub builds/1.71.2430 builds/1.80.550
sourceforge
portableapps/Pidgin Portable on SourceForge Pidgin Portable 2.5.0/Pidgin_Portable_2.5.0.paf.exe
github
doxygen/doxygen on GitHub Release_1_5_6_20080819
sourceforge
pidgin/Pidgin on SourceForge 2.5.0/pidgin-2.5.0-win32-bin.zip 2.5.0/pidgin-2.5.0-debug.exe 2.5.0/pidgin-2.5.0.exe 2.5.0/pidgin-2.5.0-no-gtk.exe
sourceforge
sevenzip on SourceForge LZMA SDK/4.60 beta/lzma460.tar.bz2 7-Zip/4.60 beta/7za460.zip 7-Zip/4.60 beta/7z460-x64.msi 7-Zip/4.60 beta/7z460-ia64.msi 7-Zip/4.60 beta/7z460_extra.7z 7-Zip/4.60 beta/7z460.tar.bz2 7-Zip/4.60 beta/7z460.msi 7-Zip/4.60 beta/7z460.exe
github
scummvm/scummvm on GitHub closed/gsoc2008-tfmx
sourceforge
pidgin/Pidgin on SourceForge 2.5.0/pidgin-2.5.0-0.src.rpm
Maybe you can find something interesting in this list