Minor comments/buglets/suggestions for sometime in the future. Sorry if these seem pedantic
A standard navigation bar - yes I do think this is needed - no more than $bburl -> Links - otherwise it's inconsistent
There's a bug when using admin CP View/Edit links to modify category names/descriptions, if some html magic characters appear (e.g. &) - each time through the edit, the character gets remapped, so one ends up with & amp; amp; etc
All the dropdown category lists should be in alphabetical order
The doneaddlink template is missing a couple of closing </table> tags
thanks