???hello friends i want to know if vista firewall is good enogh or should i install another firewall software???

Windows Vista firewall is little better than windows xp firewall as it provides protection for outbound connection too but if you need real security then go for third party software like comodo (as you suggested yourself ones)

Actually, there is no clear way to make it work the way you want, atleast I was confused for a while :P

k i'll go for it but commodo interferes with other programs too like i downloaded a songs video but later on when i tried to remove it i was unable to do that as access was denied but after uninstalling commodo and rebooting my pc it was deleted in 1st click.

Well, comodo never cause such problem. But actually you need to learn it a little bit.

Security comes at a little cost and that is some interference by COMODO firewall in day to day work