The timetable linked on the BAC website is dated July 2003, but I'm pretty sure that the introduction of the Luas was to result in a big change to the timetables of all the Dundrum routes including the 44.
You may wish to give BAC a ring to check times. Also, note that it would probably be faster (but more expensive) to get the Luas to Dundrum and pick up the 44 from there as the journey out through Ranelagh and Milltown can sometimes take a long time on the bus.
Either way the journey will take a long time since Kilternan is a long way out. If the guys don't know exactly where they are going it would be best to ask the driver - getting off *in* Kilternan will result in a 20 minute walk to where the slope is, and missing the stop will result in something similar.
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