Script to proxy just one website with the folder structure? I'm looking for a proxy script (or possibly some .htaccess voodoo**) that allows just one domain to be proxied, while keeping the folder structure intact. Ideally I would also give it a wildcard DNS and it would do subdomains too, but that's not necessary because I can also just set up the proxy a few times (once for each subdomain).
So say the original site is someawesomesite.com. And my proxy is at myawesomeproxy.com. I want to be able to go to myawesomeproxy.com/thisawesomedocument.html and see the same as I would when I would go to someawesomesite.com/thisawesomedocument.html.
Also, my hoster only has PHP, no CGI or ASP etc. so it would need to be in PHP (or as I said before if you guys could cook up some .htaccess voodoo, that would be awesome too!)
Basically what they pulled off over here but with another site than The Pirate Bay...
** I'm not the server owner (shared hosting), so I can't install Apache plugins or edit configs.

You can use the P(proxy flag). Remember for this to work mod_proxy should be enabled. 
Assuming that the directory structure are the same & mod_proxy is enabled by your shared hosting. Try this:
Options +FollowSymlinks
RewriteEngine on
RewriteBase /

RewriteCond %{HTTP_HOST} ^(www\.)?someawesomesite.com$ [NC]
RewriteRule ^(.*)$ http://www.myawesomeproxy.com/$1 [P,L]