Okay false alarm, I found the answer, finally. I checked all sorts of search options but finally found the answer. It was acutally method two that got it to work
Q: How do I get into the Treo 600 to change the Setup, to select the infrared wireless keyboard option?
Once the driver has been installed you can enable the IR driver in 2 ways.
Method 1
Open the keyboard application
Open the drop menu in the top right corner and select “Wireless Config”
Check the “Detect Wireless Keyboard” box
Now align the IR wand on the keyboard with the Treo’s IR port and begin typing. Please note by default you will have 30 seconds after checking the “Detect” box to begin typing or the driver will automatically disable to conserve power.
Method 2
Power off /on the Treo phone
Align the IR wand with the IR port
Begin typing.
Now align the IR wand on the keyboard with the Treo’s IR port and begin typing. Please note by default you will have 30 seconds after powering on the Treo to begin typing or the driver will automatically disable to conserve power.