There is no need to post the same question in multiple threads. The answer is the same as in the Display members who have registered.

I get an error with it displayed twice. I uninstalled and tried to reinstall but I still get this problem:

I've looked in the template and its only there once. What is causing this?

Edit: I fixed it. I uninstalled the product and then removed the code that remained in the forumhome template. Reinstalling it after this solved the problem!

is this mod do similer work like this?

That does a similar thing yes.

Installed! Thanks for the great hack!

Again been looking for this for ages - installed!

How can I change the font size of the username? I want it to be 12 pixels.

Display_Visitors

Done it, using the above template.

Cheers

I have a profile field which shows a crest (logo) of the team the member supports. Is it possible to show the field on the list of members that are shown on this hack?

Assuming I understood you - edit the "Display_Visitors_User" template.