All righty now, one more kick at the can trying to get MT to transfer the categories matched to the articles but no joy so looks like will be doing that by hand. Give me something to do while watching This Hour Has 22 Minutes adding categories to 300+ posts, oh well 
Everything seems to be working pretty good except for that, time to add some colour to the Blogged on Bowen pages. Still no joy with getting the Healthy Brain search function correct but Dean Allen over at Textpattern is on the case. Worst comes to worse I can re-install and rebuild the default templates and get it going – must be something from the upgrade and still using the page template from previous versions (can’t see anything different tho’…)