obtaining source code for 1.5_1

I understand that the source code is available online for 1.5. Is there a way to obtain the revised sourcecode for the newer release? I'd like the source to match the version installed because I use Eclipse, and I'd like to attach the source so I can see the source as I step through in the debugger. If the versions are out of sync, the line numbers won't match up and I won't be able to see what line I'm stepping through in the debugger.

[452 byte] By [imotica] at [2007-10-1 2:37:17]