[REBOL] finding the correct binary

[norsepower]

How can I find out which rebol binary to upload to my cgi-bin 
directory?  I am using Dellhost, which has several possible server 
configurations.  I do not have telnet access to my site, but I do have 
ftp.  When I use the 'system' command in ftp it tells me

>ftp system

215 UNIX Type: L8

Isn't there a web page somewhere where I can submit my URL to find out 
my server configuration?

Thanks.

-Ryan