[imp] acquiring directories

[brook davis]

Hi all,

I've been trying to obtain an array with all of the directories for
someone's mail account in imp.  I've been using :

 $imp_folder = &IMP_Folder::singleton();
 $folders=$imp_folder->flist_IMP();

The above returns an array of arrays, however, it seems incomplete, as
some of the subfolders are not returned.  Is there another way to do
this?  I've been searching through the online API, but so far I've not
looked under the right rock.

Any assistance greatly appreciated,

Brook