Screenshot time, hurray!
[Hosted by ImageShack, as I have no room for attachments on SEN]
Item Selection: To use an Item, bring a Dark Templar to the marker on the end. The marker is labeled, depending on what Item it is.
http://img26.echo.cx/img26/796/screen107.jpgItem Targeting: All players are then notified with a message in red. You can then choose what player to target the item on. (Note: Only one player is shown in this screenshot, Red, because I'm the only human player there.)
http://img26.echo.cx/img26/1276/screen108.jpgItem Targeting (2): You then bring your DT to the Templar Archives of that player. The item is then used, and your DT dies.
http://img26.echo.cx/img26/7668/screen109.jpgExile: In this example, the item that was used was Exile, and it was used on player 1. Red's heroes are trapped over there until Exile's effect runs out.
http://img26.echo.cx/img26/6020/screen110.jpgYou can only use one Item at a time. So Red cannot use another item until Exile runs out.
The Amazing Race: The third minigame.
http://img26.echo.cx/img26/7838/screen111.jpgThe Amazing Race (2): Run with your Runner (Zergling) to the other side of the platform. Sunkens will constantly attack you, so if you take too long, you die. Dark Archons will just generally get in your way.
http://img26.echo.cx/img26/4839/screen112.jpgThe Amazing Race (3): You can use your Goop Gun (Queen) to Ensnare other players, giving you an edge.
http://img26.echo.cx/img26/7476/screen113.jpgThe Amazing Race (4): Ahhh, sweet victory.
http://img26.echo.cx/img26/5666/screen114.jpgStar Purchasing: It works now.
http://img26.echo.cx/img26/2749/screen115.jpgMutalisks: Mutalisks can evolve into more specialized forms, but at a hefty cost.
http://img26.echo.cx/img26/4789/screen116.jpgEnjoy! AHHH! Where'd the cheers smiley go? Ahh well, this will have to do.