IIS Setup & Dreamweaver

[kester]

I need help with my IIS on W2K.

I have my website directory on my D: drive,

my localhost @ c:\inetpub\wwwroot\
a virtual directory @ c:\inetpub\wwwroot\sitename\ which is linked to my website directory on D:.

I have PHP installed and working fine.

I need Dreamweaver to preview through my local server, and so i've checked that box in the DW Edit Browser List.

Here's my question. How do I tell dreamweaver to use the virtual directory i created as the root instead of the natural c:\inetpub\wwwroot\ ???

Solutions much appreciated...

~Kester