How to find out if there is a post in a thread unread?

[calvert]

Hi friends,

I'm currently programming a vBulletin plugin which shows the latest threads on the main forum home page in the vBulletin 4.0 board (the current available plugins just didn't do what i want).

There are the 10 newest threads in the left table and 10 latest news threads in the right table. When somebody posts to a thread, this thread will get to top position.

Now I would like to add the same functionality, like for example when you're browsing in a thread list, to show the button graphic "go to last unread posting" (of course only if there is an unread posting within the showed thread).

I searched many different boards and locations now but didn't find a solution.

When you're in forumdisplay you can use the conditional

<vb:if condition="$show['gotonewpost']"></vb:if>

but this one seems not to be available on forumhome. Probably somebody can help me with that issue? Or probalby can tell me how to make that conditional available on forumhome?

Would be great!

Thank you and greetings!