Illustrator SDK :: Can't Insert Entry Into A Hierarchy List

I'm working on a quick little plug-in with the Illustrator CS3 SDK and am having some troubles inserting a single entry into the hierarchy list.  I have confirmed that my suites file is correctly calling in the ADMHierarchyListSuite5 class and am able to do everything I try to do in the following code except for add a new entry.
 
ASErr NewDialog::Init() {
    ASErr rslt;
    if(rslt = BaseADMDialog::Init()) {
    return(rslt);
    }
    this->SetThisPointer(this);
    IADMItem itmBtnCreate = this->GetItem(kNew_BtnCreateIndex);

[code]....
 
I set up a quick test with the above if else statement to pinpoint that that is where the problem originates as it always exits on signal 671.   I'm building this in Visual Studio 2008.