[pmlnr]

Write your own and keep it simple. It's not that hard.

The ones you can buy however are a nightmare for sure, so are most of the copy-pasted-glued-together ones.

[geon]

Admittedly, it was a few years since I looked at the inside of wp, but it was horrible, with php api calls inside the template code, bad/missing/misleading documentation and non-existing database structure.