SMF Update to 2.0 done. Default theme set to curve w/TCL stuff for all users. Installed Bad Behavior Mod, notCaptcha Mod, Anti-Spam-Link Mod. dokuwiki updated to "Rincewind", SMF auth is working again.
I didn't even know of OpenVPN plugins before this post but since there are only 3 "official" community plugins, I'll have a look to include them.