[doubleclick]

Well, I finally figured out how to move the challenge option out of the basement and somewhere easier to find. Not a rocket science solution, but here it is:

I pasted this into the postbit template:

<b><a href="arcade.php?do=newchallenge&userid={vb:raw post.userid}">Invite {vb:raw post.username} to play a game!</a></b>

Still hope sombody will make the link beside each game, so when a user is playing it, he/she has the option to select a user to challenge like I mentioned above. But making something that fancy is way beyond my abilities.