If you need to do this, I would start by firing up profiler and picking the events you are interested in.

Run the trace in the gui and perform a few of actions you are monitoring for to see if they show up in the trace. You will have to stop the trace, change the properties of it and restart the trace to make sure you get all the information you are looking for. Then script out the trace as a SQL script. You will want to put the results to series of several files rolling over a file when it gets to big.

Create some procedure to start the trace and have the procedure run on start up.

RAR or zip the files up on a daily basis.