I made a couple of modifications to the Writeback Plus plugin for Blosxom. Here's the diff file. Basically, I wanted to have the ability to have alternative writebacks display with a shaded background. In addition, I fixed the removal of the builtin trackback flavour. And I also fixed the annoying always plural usage of "writebacks" (i.e., "1 writebacks") -- the method was taken from Pollxn.