iframes was regarding the search engine.

Let me see if i can explain my plan

A client has asked for a site that will show several designers (manufacturers) collectively. each designer would have their own section (category) which they could show independantly on their own sites in a new window. Visitors to one designers site would not be able to easily go to another designers site (but would be able to browse designers on the main site)

So, I decided (I'm sure there is an easier way but I'm still rusty!) to have the front page of my clients main site (zen) with the header and an iframe showing the rest of the site i.e. designers sections.

make sense?