Changes have long been finished, and accepted by Koush.
The CWM 4 in the other thread is the version compiled by Koush, with the same sources.
In order to complete ROM Manager support, he has to release a new version of the program, because this recovery needs to be flashed to a different partition than previous Samsung phones, which the current version cannot handle.
He is probably waiting to incorporate other fixes in order to release the new version.
The official version will only support Gingerbread roms. I was expecting Samsung to leak (or release) Gingerbread for S5830L long ago (as it is the only variant missing). Anyway, since that's not happening, I will probably release an updated, flashable version for Froyo.