Need a little redirecting help (I think)

[Padgoi]

Ok, so I have a website and I created a subdomain for it called hello so if you go to hello.website.com, it will take you to the index page of the hello folder.  In other words, instead of typing http://www.website.com/hello/index.html, you can just type http://hello.website.com and it will take you to the same place.  Here's the problem...

 

After going there, if you click a link on that index page, it redirects automatically back to http://www.website.com/hello so if you click a link to go to a page called fp.html, it will automatically redirect back to http://www.website.com/hello/fp.html.  I need to make it so that regardless of clicking a link, it will stay as http://hello.website.com/fp.html or whatever page you click to. 

 

Any help would be greatly appreciated, not sure if this requires an .htaccess code.  Thanks in advance.