[Floris]

log from irc in case you couldn't type it over

you said vb was only 1 of the 2 to support it
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You can set a category
You can set a forum below it.
This is what it shows on index.php by default.
Now
If you add sub forums to this forum (note: not category)
Then that's another level deep.
vB supports this.
Go to the acp>options> forumdisplay or something, and forum depth, set it to 1 1 2
But, if you want to show ANOTHER level deep, level 3, thenyou have to customize a template, i posted the instructions in vborg thread.
And then you can show forums below that sub forum
So you will then have
- category
|-- forum
|-- -- sub forum
|-- -- -- another sub forum
- second category
forum with no parent is level 0 (none)
forum with a parent is level 1 (has a parent)
forum with a child as parent is level 2 (parent is the level1 parent)
forum with another child below parent is level 3 (parent is child of above level2 parent)
So
Write down how you want your frums to show

# category A (l0)
- forum A (l1)
- forum B (l1)
--- forum 1 below forum B (l2)
# category B (l0)
- forum C (l1)
--- forum 2 below forum C (l2)
--- forum 3 below forum C (l2)
- forum D (l1)
--- forum 4 below forum D (l2)
------- forum 5 below forum 4 (l3)

To get category A to show on index.php you keep default vb settings
To get category B to show, you can keep default vb settings
but to show the sub forums 1 2 and 3 on index.php you have to change forum depth to 1 1 2
to get forum D to show, default is fine, to get sub forum, change it to 1 1 2
and to get the third level to show, follow those instructions i posted in the thread