Your site works fine for me. Please try clearing browser cache and it is possible you also need to flush dns cache on your computer.
All domain changes usually comes with a small delay (system update + DNS propagation), these together can in extreme cases take 72 hours to complete.
I see that you use WordPress, in order to get that to work correctly with your co.cc domain (same for all domain changes actually), you'd need to update its configuration to reflect the new domain, as the system uses that setting for generating links and including the style sheet. Fair warning though, making that change likely will render WordPress inaccessible until you have set the co.cc domain as your main (or as parked domain) and the propagation has completed.