because of vBa and its thing with links you need to hard code forum and forum home in the header template :
find :
Guests are not allowed to view code. To enable the
viewing of code, please click 'here' to register.
change it to :
Guests are not allowed to view code. To enable the
viewing of code, please click 'here' to register.
looks right now
if you see or need something else --