[TYPO3-shop] DIBS Payment

[Simon]

I'm trying to integrate tt_products shop system with the DIBS library. I 
  got an error saying:

Fatal error: Call to a member function getBlankUid() on a non-object in
ext\tt_products\pi1\payment_DIBS.php on line 54

Found an old newsgroup-message from Franz Holzinger saying that it 
needed to be

$orderUid = $this->pibase->order->getBlankUid();

didn't work either. I found out that getBlankUid was missing from 
class.ttproducts_order .. found it via google.

Now that part works by referencing it directly like this:

tx_ttproducts_order::getBlankUid();

But..

then I get another error saying:

Fatal error: Call to a member function getView() on a non-object in 
E:\webdev\jianlong\typo3conf\ext\tt_products\pi1\payment_DIBS.php on 
line 224

If I correct this, I end up having to mess with the shop code itself

Has anyone found a solution as to how to get it to work?
Am I missing some kind of include file?

I cannot use the new payment library as it is not working with PHP4

Thanks for any help you can provide