ok.. first part. pranqster. you could age it, i suppose, but it begs the question of why? its techically a belgian strong, but in all likelyhood it is really a belgian witbier, a very strong one (7%ish?), and these do not improve with age. if you want beer that will improve with age, go with stouts (big ones, imperial stouts), barley wines, lambics (not kriek), and belgian strongs / quads. there are other styles that should age - belgian tripels and dubbels, but why? aging is also slowed a good deal by keeping the beer in sub 40 degree temps (see - refridgerator) and is progressed faster by aging in 70+ (see - room temp). so if you are serious about aging beers, you should invest in a little cooler that will allow you to keep beers at 55 degrees. if its not that big of a deal to you, then keep it in the fridge or on a book case.
by the way, when people say: improves with age... that doesnt mean 1 month. improves with age means several years. i would see no reason to keep pranqster around for more than 2 days. since you bought that, you should have access to north coast old stock ale 2006 and old rasputin. the old stock ale should be good for 10 years, so if you really want to see what aging a beer will do, put that one in the back of your closet and forget about it and when you are cleaning your closet in 6 years, you will see it. feel free to ask any more questions regarding aging and i should be able to answer you.
second half: st ambroise is not sold in america. i dont know where you got that info from - i am pretty sure you cant buy it in the states. if you CAN buy it, you would find it in the very top of michigan and some obscure parts of new york. its very good stuff, pretty unique and well worth seeking out. the way to do it, would be to join up either ratebeer.com or beeradvocate.com and suggest a trade. you will have to ship across the border so there could be transaction problems, but if everything works out smooth you can get it pretty easily.
i just traded some beer and got some the other day. ill be trading to canada to my friend again in a few months, so if you would like a bottle, i can perhaps help your situation.