Really stuck :( please help with quick WP-Dtree question

Hi,

I have been looking everywhere for a fix to the problem I am having with WP-dtree. Id love to use the plugin in my website. As one of the developers I thought you might be able to help.

Its a pretty straightforward thing that I need to do:

Basically I just want to list categories using the Wp-dtree plugin. I would like to use the following two options OPEN TO SELECTION and FOLDERS ARE LINKS options.

That means if someone was to click on a folder it would load the contents of that folder and drop down any sub categories. The functionality I require is exactly the same as that on https://www.silpstream.com/blog/

At the moment I can only manage to get one option or the other working but not both at the same time.

I am using wordpress 2.5 and Wp-Dtree 3.4.1 any help would be greatly appreciated.

Thanks,
I