[Xitami] Custom Error 404 pages directories

[xitami@lists.xitami.org]

IS there a way to specify a separate errors pages for virtual domains?
I am hosting s few virtual domains under a directory structure as such:

//xitami/webpages  (main)
//xitami/webpages/domain1
//xitami/webpages/domain2
//xitami/webpages/domain3
etc.

The way it is set up (or not set up) now, every virtual domain calls the error
pages from the main domain. How do I change this?
Examples of config files and directory structure would be helpful.

Thanks all!