we usually test the crks to see if they're actually acting as jnts,,, if they're static, the chances of their reflecting up into an overlay are greatly diminished.
the most important part of resurfacing is PREP - PREP - PREP,,, caulk is never designed to be used in a driveway crk - even a crk properly prepared,,, use a sealant.
btw, you won't find any mtls for this project in an apron store !
concretenetwork.com is a good place to begin,,, good luck !:beer: