The conversion to dual :/@ form in templating.py isn't 
complete.

indexargs_url still has support for only : form 
of:
search_text, pagesize, startwith.

Code:

    if 
self.search_text and not args.has_key(':search_text'):
            
l.append(sc+'search_text=%s'%self.search_text)
        if not 
args.has_key(':pagesize'):
            
l.append(sc+'pagesize=%s'%self.pagesize)
        if not 
args.has_key(':startwith'):
            
l.append(sc+'startwith=%s'%self.startwith)
        return 
'%s?%s'%(url, '&'.join(l))