Hey,
Just FYI and to help improve your awesome mod loader, as of right now the newest update, 5.2.5.691, isn't compatible with ChickenBones' mod's CodeChickenCore and NEI.
*update* I've also checked .696 and it also has the same trouble, that log is at the bottom as well.
This:
http://www.minecraftforum.net/topic/909223-147152-smp-chickenbones-mods/
Is where the mods themselves are from, and the log for the error from when I attempted to use the updated forge to load them is at the bottom of my post. There are many people currently complaining to Chickenbones at the bottom of his post because it doesn't work, please update this for his sake.
The previous versions of forge, like .684, the one currently on the 1.5.2 download thread, ( http://www.minecraftforge.net/forum/index.php/topic,8174.0.html )
does work to run the mod, although it took me a couple days to figure that out.
Log for .691
Log for .696
Thanks for your time and hard work!