Mystery about file share on Mac OSX to Win client out there

[Jim Ault]

I am running the following:
Mac G5, OSX 10.3.9 with a static IP on Cox Cable system in Las Vegas, NV
static IP            24.234.124.99     (.99 is not the correct ending)

After setting Windows Sharing ON
the Apple dialog box says
"Windows users can access your computer at
\\wsip-24-234-124-99.lv.lv.cox.net\shareName"

but while using  WinXP,  network wizard immediately complains about this
address...
Alternately, using \\24.234.124.99\shareName results in a timeout, "the
folder you entered does not seem to be valid.  Try another"
 
I can get to this volume by IE    ftp://24.234.124.99/   , then login,
password, and move files + create folders

The goal is to be able to mount the Mac folder on the XP desktop.  How can I
do the share?

This has been rather confusing with little info out there to help me, but
lots of mis-direction.

Thanks in advance.
Jim Ault
Las Vegas