Mailing list
The wxlua-users mailing list is where wxLua developers and users work on and discuss about wxLua; you can browse the archives, search them or just subscribe it and ask for help.
You can also browse it through the GMane web interface or search it (using GMane). More info about GMane services for the wxLua mailing list can be found at http://dir.gmane.org/gmane.comp.lib.wxwidgets.wxlua.user.
Recent changes to wxLua's CVS can be viewed at wxlua-commit archives.