opening LAN / GAIM port through default FC1 Firewall

[Parameshwara Bhat]

Hello Everybody,

I have recently installed FC1 in my office computer opting Personal 
Desktop installation and enabling firewall.

I cannot connect to yahoo in gaim though the proxy is correctly set 
and my browsers are working.I keep receiving 'invalid proxy setting' 
error message.

I cannot see my Windows neighborhood though my workgroup is correctly 
set in swat(samba). I use linneigborhood/xsmbrowser as frontends to 
samba and I believe all my settings are correct. But still, I cannot 
see my local network as I used to with RH 7.3 with the same settings .

I am just wondering if this could be due to my firewall.How can I open 
ports specific to gaim messenger and samba working (lan browsing) 
safely without stopping firewall ?

Parameshwara Bhat