In a similar position. Initially, planned on claiming expenses - but there has been so much pfaffing around, it's unreal. The trial has been postponed on three occassions, then adjourned on the last one. I think you need to get a form off the Gardai - to claim expenses. I have not gone there - as I have just gotten fed up with the whole process.
Even with putting in the form, they're supposed to be difficult to extract expenses from....that's not from experience...just anecdotal ...so perhaps that's not accurate...I can't say for sure. Hopefully someone here can advise you better.
Please come back and let us know how that goes for you.