Matty,
if you have a portable TV that you can place next to your imaging lappy or PC you could try what I do.
If I want to look at the Moon or Planets (my v2.5a hand controller doesn't do planets, I have to go look for them), I have an El-Cheapo wireless security camera fitted into my 8x50 fiderscope. I look at the TV and use the slew arrows on the hand controller to centre the object. I have marked crosshairs on my TV and when the object is in centre of the crosshairs it is also centre of the imaging screen on the lappy.
I also use the TV and security camera for initial 3 star alignment on start-up. It makes the job a lot faster
The security camera in the finderscope can be seen here: