I am trying to archive a message board. I have tried this:

<http://httrack.kauler.com/help/Form-based_authentication>

The capture works as stated, but a drop-down bar still reverts to "Show last
20 Posts" and thus does not get all threads. (I set my login preferences to
use "Show All Posts", but HTTrack ignores that, it seems.)

Anyhow, I know that the particular URL structure for all threads looks like:

<http://www.gamedev.net/community/forums/topic.asp?topic_id=399307>

Where the topic id is sequential.

For multi-page topics, the URL is as follows:

<http://www.gamedev.net/community/forums/topic.asp?topic_id=399307&WhichPage=2>

(That is page 2 of a 2-page thread.)

Does anyone have any ideas (HTTrack or otherwise) on the best way to grab all
of these pages?