helping my father-in-law set up a wireless network sys w win 98

My Father-in-law got a old Dell computer with pentium 2 and win 98 from one of his daugthers and he has a pentium 3 gateway with win98. He asked me if he got a linksky wireless router can he share files and printer. I told him as far as I know , he can.

I have a laptop winxp home and a desktop with winxp pro and a netgear router and I can go online, share printer and files. ( I do have a problem with zone alarm, Later on that)

However, I understand that winxp made this setup easier, I was wondering is win 98 hard to set up on a wireless network? And what kind of things should we look out for?
The neatgear tech support walked me thru the steps and it was relatively painless. I would imagine that linksy will have the same kind of support.

As far as my problem, I can print from my laptop that is connected wirelessly to my printer as long as i disabled my zone alarm(the free version). I did go to the website and faq and it said to add the desktop and laptop to the trusted zone which i did(I added the IP address) but still it doesnt work.
Should I add the subnet address, or does anyone have any suggestions?
TIA