I only could grab this archive of (latest?) transmission source.
Looks like the original author left I2P without a word and the SVN is lost.
This archive is a svn export by a third person (no SVN dump, no binaries, no hash sums).
I got no information about state of code or anything else!
Be careful

transmission source archive.

src as of 08.10.2009 from the website downloaded as .zip file.
And as debian packages:
transmission cli 0.1.0-4 debian package.

transmission qt 0.1.0-4 debian package.