ok so im a newb-ish (i've been camping many times before) to the backcountry type of camping/hiking. I just pitched out an old summer tent (real piece of junk) and made a serious (for me anyway) purchase. I bought a Eureka Alpinelite 2xt, my friends and I are hoping to do some winter camping/hiking (N.S. canada), nothing to serious as its our first time, just a night here and there.
My question is should I waterproof the seams/stitches?? I have read a few different times about waterproofing your tent no matter what. I have not received it yet (in postal transit) it comes with the rain fly and vestibule, I also got the footprint. Should I get the seam seal anyway?? I just want it to last a few years at least and of course not leak!

thanks for your help
robert