Not really a simple fix.
First, you would need to create a new menu template. Use the help menu as a guide.
Next, you will need to enter the links in the template. If they are linking to a non-X-cart page, they will need to be hard-coded (i.e.
http://www.yoursite.com/yourpage.html)
Finally, you will need to call the template in customer/home.tpl. Take a look at how the other templates are called and just copy the format.
Hope this helps!