Testing demo " BuddyPress Themes In Action"

Greetings

I have a WPMU Premium account
I want to create a website similar to UMWBlogs.org
I was hoping to customize a theme to look like UMWBlogs.org and wanted to
call marinprofessionals.com
Marinprofessionals.com is currently being hosted by Godaddy
hte server names are bellow
nserver: ns25.domaincontrol.com 216.69.185.13
nserver: ns26.domaincontrol.com 208.109.255.13

I paid for IncSub to have the installation done but apparently
it only installs to their own servers(bellow):
Please set the nameservers of this domain to:
ns11.psekhosting.com
ns12.psekhosting.com

So I used filezila to upload bbpress and WPMU to Do daddy account and
was hoping I could godaddy servers instead of pSek servers
it is possible, if if so, is there any documentation I can use to accomplish that?