the ammonia test is the most important one in the beginning of a cycle, then nitrite, then nitrate. what type (drops or strips) are your tests?
you should also pick up a nitrite test and a nitrate test, or just go get an API freshwater master test kit. it may seem expensive, but the kit allows you to do many, many tests and is quite accurate if the instructions are followed.
read the sticky on fishless cycling, that is your first step.