Ports. I try to connect to AIM or MSN messenger it says server is not working. It also does this

Question

I try to connect to AIM or MSN messenger it says server is not working. It also does this when i try to connect to my bank account. I have an active internet connection and everything else is working. I tried to type in router ip to open ports and it wont let me i just wanna know what i can do to get those ports open so i can use my messengers again. thanks