hmm from what i read it seems about in may....check the job section
There are always pr jobs available. There is normally a really high turnover with jobs with people coming and going all the time.
Anytime really.

Ask around Kanya / coastline in the day, a lot of workers hang out there.

Look for ads in Mega music.

Go to a pub called the Ship inn at the top of the westend, ask in there, they also have a notice board with jobs advertised.