One of two great losses of early Oolite history. The BB website lost many thread due to the settings (automatic thread deletion if no activity for 6 months) back before August 2008. Many of Aegidian's & Ahruman's posts were consigned to oblivion.
See: We are losing our collective memory (Aug 2008)
For an example of what was lost: Giles' excellent and thorough guide to making your own dock: http://aegidian.org/bb/viewtopic.php?p=20007&highlight=subentities#20007
The other loss was due to Oosat2 going down and the old oxp's on it being lost (or more accurately, their ReadMe's being lost):
See the historical section in Oolite.