Releases in September 2004 and before

sourceforge
gparted/gparted on SourceForge gparted-0.0.5/gparted-0.0.5.tar.bz2
github
fvwmorg/fvwm on GitHub version-2_4_19
github
i2p/i2p.i2p on GitHub i2p_0_4_1
github
fvwmorg/fvwm on GitHub version-2_5_11
sourceforge
dosbox/dosbox on SourceForge 0.62/dosbox-0.62.tar.gz 0.62/DOSBox0.62-win32-installer.exe
github
doxygen/doxygen on GitHub Release_1_3_8_20040928
github
lilypond/lilypond on GitHub release/2.3.19
github
live-clones/gmsh on GitHub gmsh_1_55_2
github
fluffos/fluffos on GitHub fluffos-1.28
sourceforge
irrlicht on SourceForge Irrlicht Sources only release/irrlicht-Sources-0.7.1.zip
github
GNOME/gimp on GitHub GIMP_2_0_5
sourceforge
nsis on SourceForge NSIS 2/2.01/makensis201_log.zip NSIS 2/2.01/makensis201_no_solid.zip NSIS 2/2.01/makensis201_strlen_8192.zip NSIS 2/2.01/nsis201.tar.bz2 NSIS 2/2.01/nsis201.exe
bitbucket
icl/papi on Bitbucket perfctr-2-6-10-1
github
znuny/Znuny on GitHub rel-1_3_1
github
secdev/scapy on GitHub v0.9.17.18 v0.9.17.17
github
mono/mono on GitHub MCS_1_1_1
Maybe you can find something interesting in this list