Releases in September 2003 and before

github
GNOME/dia on GitHub DIA_0_92_PRE4
sourceforge
sevenzip on SourceForge OldFiles/7za310.zip OldFiles/7z310.tar.bz2 OldFiles/7z310.exe
github
FarGroup/FarManager on GitHub builds/1.70.1714 builds/1.70.1713 builds/1.70.1712
github
GNOME/evince on GitHub GPDF_0_121 GPDF_0_120 GPDF_0_112_1 GPDF_0_112 GPDF_0_111 GNOME_2_4_ANCHOR
github
GNOME/dia on GitHub DIA_0_92_PRE3
github
FarGroup/FarManager on GitHub builds/1.70.1711
github
doxygen/doxygen on GitHub Release_1_3_4
github
FarGroup/FarManager on GitHub builds/1.70.1710 builds/1.70.1709
sourceforge
sevenzip on SourceForge OldFiles/7z30902.tar.bz2 OldFiles/7za_dll_30902.zip OldFiles/7za30902.zip OldFiles/7z30902.exe
github
FarGroup/FarManager on GitHub builds/1.70.1708
sourceforge
winscp on SourceForge WinSCP as FAR Plugin/1.0.1/winscpfar101.zip
sourceforge
irrlicht on SourceForge Irrlicht Sources only release/Non sdk release 0.4.1/irrlicht-0.4.1.zip
github
FarGroup/FarManager on GitHub builds/1.70.1707
sourceforge
winscp on SourceForge WinSCP as FAR Plugin/1.0.1/winscpfar101source.zip
github
FarGroup/FarManager on GitHub builds/1.70.1706
github
torproject/tor on GitHub tor-0.0.2pre8
Maybe you can find something interesting in this list