fire sharing on wireless network

[mitch]

I'm new to wireless and networking. I have Win XP Home on
my PC and a new Apple iBook with OS X 10.3. I have
installed a Linksys Wireless G broadband router. The
iBook wireless is receiving the Internet perfectly, but I
can't get the two computers to "see" each other for file
sharing. Neither seems to know that the other is there.

I set up the connection as follows:
Cable modem is connected by cable to router's "Internet"
in slot.
Router is connected by cable to PC's Ethernet adapter.
I followed the Linksys setup instructions, but got only
the Internet connection to the wireless iBook.

Any ideas for this newbie? Could it be so basic as
needing a WIRELESS adapter for the PC?

Thanks!

 

[gene]

I am haveing the exact same problem, they don't see each
other, and I can't find any help on this at all, so i
hope some one is nice enough to help, please

 

[mitch]

Evidently my problem was that Norton Internet Security
firewall(s) prevented the two machines from connecting.
Once I exempted the router-generated IP's from thr
firewall and restarted everything, we had a network.