Vauxhall Astra when pulling off i get vibration in 1&2 gear

If your getting vibration or juddering as you bring the clutch pedal up,as in pulling away or changing gear then I would guess its a clutch problem. Other causes might be worn or broken engine or gearbox mountings.

There is a small vibration when ticking over to

If the engine seems to be `rocking` excessively` on tick over then I would still guess its the engine/gearbox mountings.
When you say vibration at tick over, is there any noise?
Is the car running ok apart from this problem?

If not the engine / gearbox mountings , which is a very likely cause , probably the clutch assembly . A while back Vauxhall were fitting a modified clutch and in a lot of cases the flywheel also under warranty because of the judder . You wont get it replaced on that year of car now and not 100% sure if 2.0 litre was covered or not .