Hello.

Explane please for me,how to forward ports on my router?

I need for torrents that i can download torrents. Now when i try try to download,it says not connectable.

Have you checked this ? http://wiki.mikrotik.com/wiki/Manual:IP/Firewall/NAT
Or this ? http://wiki.mikrotik.com/wiki/NAT_Tutorial

Yes,but i don't understand there anythink. And i checked it 2 times! So,please,any one?

Do you know what NAT is ? How it works ? What is used for ?
http://lmgtfy.com/?q=firewall+NAT+what+is#seen

''Thank you'',for perfect answer. I tried to set new dst-nat rule,but all i needed was just to enable UPnP. Thank you. Now everything works for me.