I was interested in sorting the alt coin's by the newest thread instead of just last post... Is this possible? I tried finding it but couldn't so maybe someone knows a extension or something.
Yes. Use this function:
https://bitcointalk.org/index.php?board=67.0;sort=first_post;desc (number 67.0 is the board number for Altcoin Discussion).
I have found some issue, when using "first_post", the oldest thread appeared in the first. However, I wonder how to sort by the newest?
You must add the ;desc after "first_post", so that it is in descending order. The link SFR10 gave sorts by newest.