[quote:39411]So do I need to change the resolution and length in Ultrabeat every time I change my tempo within my arrange window?
No. Tempo and time signature are 2 different things.
The resolution defines the value of each step in Ultrabeat's sequencer. For example, you can select 1/16 if you need to enter sixteenth notes.
The length determines the number of steps in a pattern.
As Rounik said, if you want to learn more about Ultrabeat, you'll definitely want to get the Ultrabeat tutorial.