[Xitami] protected directories not accessible with SSL

[Josh A]

I have recently upgraded from xitami to xitami pro to provide SSL to a 
customer.

Xitami/Pro v2.4c3 on windoze 2003 enterprise

I have configured sslhttp.cfs and migrated my config files  (only 
defaults.aut and defaults.cfg - this is a single user / single domain 
server)

http://domain                                works
http://domain/private    user:pass   works
https://domain                              works
https://domain/private  user:pass    Doesn't work

when trying to access a protected directory (defined in defaults.aut)  
or even /admin  when using HTTPS, it rejects the credentials, though 
they are correct and work with non-ssl.

I'm sure there is just some setting I missed, let me know if there is 
any further info I can provide.

Thanks !!
Josh