[CentOS] squidGuard-simple.cgi display fields

I have this cgi file running on CentOS 5 with Apache 2.2.3 and although it
executes most fields are empty, a typical block by squidGuard yields this:

Supplementary info	:	 
Client address	=	192.168.0.5+clientname
Client name	=	
User ident	=	
Client group	=	
URL	=	
Target class	=	

The redirect lines is:
http://localhost/cgi-bin/squidGuard-simple.cgi?clientaddr=%a+clientname=%n+clientuser=%i+clientgroup=%s+targetgroup=%t+url=%u3

I assume the "+" throws this off somehow, something to do with cgi and apache?

Any ideas?
Thanks!
jlc