Thanks Jason, will look into it all now. Is there a link missing for details on the htaccess file?
Also do you have any comments on using the 1&1 supplied subdomain for live testing. 1&1 don't have a testing server facility but suggested uploading the site under the subdomain during testing before transfering the domain name to 1&1.
The clients existing old site is not hosted with 1&1 and their domain name is registered elswhere.
Can you see any problems with this?