Looking good, but some things you may want to consider:
1. Removing the big (c) in the logo, a little intrusive, you don't need it that big or there at all, just put a copyright notice in the footer.
2. Roll over buttons like lazyleo said.
3. What does the faded image for VPS#4 mean on the "Services" page mean? Is it unavailable or something? I would change the image to say that it's unavailable.
4. Change the style of WHMCS so that we can navigate back to the main page without hitting the back button.
5. The header of "Welcome Greetings" confuses me a bit. Maybe just have it say either "Welcome" OR "Greetings", not both.
6. Have the "-more..." points in your hosting link to a page with more description. There's not too much info about each plan on there.
Hope this helps.
Mitch