I currently have a PC running Windows XP Pro and have a number of
shares set up on a peer to peer network. What I want to do is allow
anyone to access the shares without a password besides one share that
needs to be password protected. When I was previously running Windows
98 this was as simple as ticking the password box in the sharing pane
but since XP uses Windows 2000 share setup I don't understand the
configuration. I do not have acess to any machine besides mine so
changing configurations on their machines in not an option. Also the
network has a number of different operating systems that might
potentially connect i.e. 98,XP,2000

I described the solution here - http://www.triangularweb.com/xpshare/.
Hope that will help.

P.S. If you still wish to send the $10, drop me an email to the
address specified there at the page ;)