Last amendments on www.vietnamhost.com:

the main web contains only root files
index.html - entry page
index.shtml - main page
framevnhost.html - the frame version of the domain. 
...

and root directories.
/images
/frame

Directories of customers are subwebs
framevnhost.html is not in /frame to avoid hyperlinks to all categories beginning with "../"

XP - CONSULTEC/ 18.1.2001 Saigon-HCMC/ Vietnam