Could you give any further details about pairing under Windows 8? I'm trying to do the same thing, but it drives me mad... :-) I must say that I'm not very common with Windows8, but I'm trying since 2 weeks to make this thing work... without any success.
Windows 8 is a challenge (for me anyway).
Power up your Panogear mount with the Bluetooth adapter connected - red LED light flashing if you have the Deltawave Papymerlin adapter.
In Windows 8 get to PC Settings - screenshot 1 and Choose Add Device.
It should find the Papymerlin adapter - screenhot 2.
When it does select it and you will be prompted for a passkey - enter 1234 - screenshot 3.
That should complete the pairing - although there may be no indication of success (Windows 8 is very weird).
Now go to Papywizard and set plugins to Merlin-Orion and Bluetooth - screenshot 4.
Go to the Drivers tab and click on Chooser. - screenshot 5.
It should find the Papymerlin - choose it - screenshot 6.
You only have to go through these steps once.
Now you can got to Hardware/Connect and establish the connection between your Netbook and the Merlin/Panogear mount, status line at bottom left should indicate when connection is estblished (it's not instant) and then check using the arrow buttons.
Let me know if you succeed, or not.
If you have an Android device with Bluetooth then you could also try PandroidWiz:https://play.google.com/store/apps/details?id=com.fvh.panoramic.pandroidwiz&hl=en