Hi to all of you guys

My situations is:
I open these ports for mIRC in my firewall
TCP: 6667, 6697 & 7000 here is images
Allow Outbound Connections to any computer ports TCP only: 6667 6697 & 7000
http://imageshack.us/photo/my-images/855/71311285.jpg/http://imageshack.us/photo/my-images/51/82037318.jpg/http://imageshack.us/photo/my-images/547/37150712.jpg/Block Inbound and Outbound to any computers on all ports
http://imageshack.us/photo/my-images/163/90969639.jpg/http://imageshack.us/photo/my-images/849/47777242.jpg/http://imageshack.us/photo/my-images/685/49277520.jpg/http://imageshack.us/photo/my-images/202/93037090.jpg/And want to ask if i'll have any kind of problems in the future sending pictures etc. to my friends throw dcc or any others? I read that mIRC uses only TCP ports. Do i need an open UDP port/s(outbound/inbound)?