I have a WP blog hosted at a http://example.com/~name/wp 
I have a domain name http://somewhere.com/  I have set up this domain to forward any requests that go to it to . For example, http://somewhere.com/123 goes to http://example.com/~name/wp/123 and http://somewhere.com/images/myimage.jpg goes to http://example.com/~name/wp/images/myimage.jpg
Essentially, I would like to change the base URL of the links, images, etc. to be  with absolute paths instead of  with the relative path.
(I'm certainly not a professional, so if I'm misguided, please do correct me - I'll learn something!)