I know this is not a HP related forum, but we all know about the hp xw workstations here, a lot

So, here it goes:
I have a XP6200 with windows 7 for my 2 scope pro's and a Pulsar II. It works great for that purpose and I only have good thing the mention about the machine related to Scope.
The problem I am facing now is with firewire. I need to control my Focusrite Saffire Pro 40 but the HP just ignores any firewire device I connect through it. I have a especific firewire card that is mentioned in the hp website as the one for this workstation, and also have a via and a TI one.
They all get installed and are visible without any errors in the device manager. I already tried the several driver types (legaccy and so on) and no joy.
If this worked it would be much easier for me, once that this way I would not need to have a laptop dedicated to just configuring the saffire.
Is theres anything I'm missing here?