Actually, the themes here at nukemods.com (including MSTrenches) are compatible with most PHP Nuke web portal systems. Except for PCNuke (PCN Systems), other portals (RavenNuke, PNC Clan, Nuke Evo, etc...) you have to alter something inside the (theme.php) inorder for the right block to show up.

I highly recommend RavenNuke for it's more into security. PCNuke is a good option too if you're looking for a full featured website & doesn't have the time to add extra modules.