Two things
1 you should do a bit more reading up on carbonating beer, different beers want different amounts of fizz, different "sugars/malts" produce different amounts of CO2. you need to add the right amount other wise just use the carb drops.
2 If you "condition" at 2oC the beer never will get any fizz, the yeast is the same as what you brewed with and needs the same temperatures to carbonate the beer in the bottles as you fermented at.
DME is a bugger to work with, before you start trying to put it into 30 or more bottles, just try running some through a funnel - then google up bulk priming.
Mark