As the first post has clearly said, the only way to set your clan tag is through the User Control Panel, commonly referred to as the UCP.

 

The specific page below allows you to change your name, bear in mind you WILL have to login again with your new name:

ucp.php?i=ucp_profile&mode=reg_details

 

Nobody will use these dll's if iw4m will have clantag feature..

 

Do note with the next update, such .dll's will cease to function, and as such it doesn't really bring much of a point. Also, the UCP already allows you to change your name, rendering such function useless.

 

However with a modified DLL your tags are yellow ingame, also on a side note will IW4m ever support "real" clan tags?

 

No, they aren't

They aren't but they are placed on a separate place in your callsign.

Whoa, you want it so badly just to have it in different place on playercard? ._.

How can I edit my in-game username to be colored using ^number codes, but not to display it that way on forums ?

When you use colorcodes ingame you canВґt see them... Only if you leave/join a server you can see in the killfeed your coloredname...