There is a detailed step-by-step how to FAQ over on the Growing Tomatoes forum that will answer most of your questions. I linked it below.

Only 3 days? Then I sure wouldn't be worried yet. Start being a little concerned after 10-12 days. ;) 75 degree SOIL temp can get you germination in 30 days but you don't have that - one reason why using bottom heat is so strongly recommended. 70 degree air temp translates to 50-60 degree soil temp in wet soil. At that temp, germination may take up to 2 weeks.

Mold is a sign that your peat pellets are too wet. That too can slow germination. They don't need to be pitched, just allowed to dry a bit with some air exposure. Just prop up the dome a bit for a few hours a day.

Transplanting is usually done once the plants develop at least 1 set of true leaves and feeding begins - using a diluted 1/4 to 1/2 strength liquid fertilizer shortly after transplanting IF the potting mix you use does not already contain some fertilizers.

You can transplant them into anything from nursery cell packs to foam coffee cups with holes punched in the bottom and filled with any good quality soil-less potting mix. Be sure to remove the pellet netting at that time.

Dave

Here is a link that might be useful: FAQ - How to grow tomatoes from seed

Thank you,

Yeah I knew that I did not have much to worry about, I just have nothing else to obsess over (I usually go from researching green cars to home to plant to anything). I am going to get a spray bottle because the top of the pellets get dry before the bottom. I am going to try and find a spot where they will be a little warmer.

I am going out for dinner now and then I am going to the store, hope all goes well

Mack