Networking Troubles

Hello everyone I am having problems networking my computers I have done this many times before and never had problems like this! I have three laptops and one desktop I am trying to share folders between them on a linksys wrt54g2 router and I can share internet just fine however I cannot view the other computers on the desktop and on my laptop I cannot access the shared folders of the other laptops. I can ping all of the computers from all of the computers however I recieve the password popup when I try to get onto the other computers from my laptop. I have checked sharing settings, firewall settings, workgroup settings, and have run the network wizard on all of the computers however they still won't work. The desktop runs windows xp home one laptop runs windows xp pro one is a mac and one is a vista. HELP!

That's quite a combination to share between. I've never shared anything with Vista (I don't use it) so all I can provide is some links for reading. (I don't know if you can set up shares between a MAC and Windows - another thing I've never tried).

Usually sharing problems come down to permissions, so look closely at those.

http://technet.microsoft.com/en-us/libr ... 27037.aspx
http://www.howtogeek.com/howto/windows- ... ows-vista/
http://blog.proud-geek.com/2007/04/02/w ... a-network/
http://www.lytebyte.com/2008/02/01/how- ... d-network/

That's just it you would think that those would be the problem however the computer that is causing me the most problem is the Windows xp home edition. I have set up networks between the mac laptop and my xp pro before and even had other temporary xp's link into network. I bought this cheapie desktop to just be a storage computer and it's not working as planned. haha jokes on me right!

OK, XP Home is it's own animal. By default it uses simple file sharing. Amazingly Microsoft has a really good tute on file sharing with XP Home. See if anything in here solves your problem
http://support.microsoft.com/kb/304040

I feel so stupid I finnaly figured out what was the problem. The router had the wrong settings it needed to be set with the domain name aswell so that the computers did not view this router as an end point just a connection point. I figured it was something stupid like that.