welcome to UK Ecommerce Forum. Im not sure if you mean that you have set up
a new domain name for your website, and you want to move the website to the new domain,
or if you mean that you have a new address or new page on your website and you want to
point the old page to the new one.
If you are simply trying to point an old page to a new one then if your hosting company has
Isapi Rewrite installed you can use that to do a 301 redirect.
if it is installed you will need to create a file called httpd.ini
and add the following lines (modified as appropriate)
RewriteRule /oldpage.html http://www.yourDomain.com/newpage.html
This will effectively create a 301 permenent redirect to the new page.
If you want to set up a 301 redirect to point the whole website to a new domain then use:
RewriteRule (.+) http://www.newwebsite.com$1
If your windows hosting company doesnt have isapi rewrite installed then you will need to go back to your registrar and set up web forwarding to point the old domain to the new one.
Hope that helps...