I don't want to sound like a dick, but where in holland? Just cause they are from Holland doesn't make them respected strains. Alot of bums, conn artists and retards live in holland, just like everywhere else. Likewise, there are some kick ass strains floating around in places where cannabis is illegal, like the states. And I'm sure they told you it was of great quality, I've never met a dealer that told me "here are some seeds, they sure are shit though".
Respected breeders and respected strains are more important than the country they came from or what the seller says.
Personally (to answer your first question) I soak my seeds in room temp water for 24 hours before I put them into the paper towel. If they start to crack open before the paper towel I just put them right into the soil. 95% germinate after 5 days in the paper towel. I use a non-clear ziplock bag, put the paper towel in it and blow it up like a baloon, keeping it in a 80-85 degree room. The 5% that dont germinate I use the match box with sandpaper in it technique and repeat. Works just about every time.