Conditonal Help

[Xplorer4x4]

I am trying to create a conditional to use for the thread prefix hack. I would use two prefixes, one called members and one called guests. If the prefix is guest, i want guests to get a pop up asking them to register, or be redirected to the register.php.

If your familiar with the prefix hack you know the prefix itself can not have HTML mark up, you have to put it in the prefix HTML mark up box ( see screen shot here)

So what kind of mark up could I use?


I got as far as something like

<if condition="({1} == guest (then) $bbuserinfo, 1")><else><if condition="({1} == Members (then) !$bbuserinfo, 1")>

I know that is slopy and i could not think of the proper conditional to use for then, so atleast I tried. If some one could clean that up much appreciated.