permalink

Hi

Hope somebody can help!

I transferred a wordpress site for a client of mine from an old testing url http://www.tate-security.co.uk/wp to a new url http://www.tatesecurity.com and every time I change the permalinks to show the page name instead of page ID it takes me back to the old site when I type in the new url address in the browser.

If I restore the permalinks to just the default setting it works fine again but then shows the url and page ID and really I want it to display the pagename. hope that makes sense

Thanks
Joe