haggul - 7:21 am on Apr 16, 2012 (gmt 0)

Thanks for that. Didn't think of it in that concept but of course it makes sense.

As my old style URLs are well established and indexed I would want to redirect these with a 301 status to my new style ones though - am I correct in thinking that?

As it's a dynamic site with a couple of thousand pages I was figuring I should use the existing script pages and just get them to lookup what the new URL should be from the database and issue the 301.

Then my existing pages I just rename them and have the rewriting handle the resolution. Effectively they could be called anything now the rewriting is masking what the pages are called?

Does that theory sound OK? It's the first time I have really done this on an established site.