To the original poster...
The coast guard is quite seperate from the navy (Being a civillian department under DFO, whereas the the navy is a branch of the CF, which in turns falls under DND).
Aside from a few members here who might incidentally be employees of the coast guard as well, you're not going to find a huge amount of information...
In the mean time, you can volunteer with the CCG Auxilliary, or if you're looking for employment, and have suitable skills, posistions are advertised though the federal public service website. Arctic Region was (probably still is) looking for oilers and stewards.
As well, they recruit and train individual for navigation and marine engineering positions, through the coast guard college in Sydney, not a bad deal, 4 years of training paid for by the coast guard, not sure how much time you owe them on graduation, but if it's what you're interested in doing for a career, then you've got a garunteed job at it if you make it through the college. Information available on the CCG website.
Further to that, I know people [students] who've been hired for the summer to man lifeboat stations, if there's positions available, see the public service jobs website.