Here is the stable 0.7.4 release and the mtn builds based on it

Remember: from the release 0.7 on you need Java 1.5 to run I2P, 1.6 preferred!

announce.txt Read the announce text of 0.7.4
i2psource-0.7.4.tar.bz2 sourcecode
i2psource-0.7.4.tar.bz2.sig .sig file for the source
i2pinstall-0.7.4.exe installer
i2pupdate-0.7.4.zip update pacakge
i2pheadless-0.7.4.tar.bz2 installer without GUI

distracted freak - 0.7.4-2 is available with some enhancements to latest bad network weather.
zzz forum entry will show you the changes.
While 0.7.4 includes the little flags, you need to get the docs.zip seperate and deflate it
into your I2P directory IF you update from 0.7.3 and older direct to any version higher than 0.7.4-0.
NO more headless install files, use instead: java -jar i2pinstall.exe -console.

sick helper - 0.7.4-3 is now available. Not much changes.
ZZZ tells you more.