This is not the same as the IRC finger.The IRC finger is a CTCP command with the syntax:-
/ctcp nickname finger
In the newest mIRC, a finger server is built in to enable you to provide finger info even if your ISP doesn't maintain a central finger server. Under Misc/Options/Servers/ you can enable this Finger server.
You also have to provide a text file with the info you want to give. This file should be written as following:-
[name] corresponds to your userid .
Put each information on separate line.
On line timer to be active.
reset to zero on connect so that you can tell how long you are on IRC for that session, or
keep time until [reset] , the timer will be cumulative and will show the total amount of time you have used IRC.