Perhaps you could tell us:

1. Which features of plotagon (which I haven't previously heard of,
incidentally) don't work well and make you think it requires an addon?

2. How you are trying to install the captcha extension? Without knowing that,
we can only guess at what you might be doing wrong.


Antony.

--
Normal people think "If it ain't broke, don't fix it".
Engineers think "If it ain't broke, it doesn't have enough features yet".

Please reply to the list;
please *don't* CC me.