This may be a caching issue. Try it again, but this time (if using internet explorer) clear off all "offline content":
Tools Menu > Internet Options > General Tab > Delete Files button > select "delete offline content" box > click "okay"
Also ensure that the site is not being cached anywhere else and, in addition, try rebooting your computer workstation.
If it seems to be a DNS problem, you can also flush DNS. See related article by searching this knowledgebase.