Good morning!
We've utilized Crystal Reports to check these types of balances - I'm unsure of any Lawson default reports that pull this (I've been out of that role for a while now). The report we created hits the EMPLOYEE, TAEEMASTER and TAEMPTRANS tables. You can filter off of transaction type and pull in the description of each transaction, along with the user_id to see who entered it.
Hope this helps!
Angie
Angie is correct in order to get the user id I'm not aware of anything other than a report that looks at those DB tables (Custom/Crystal/Add-ins etc). Lawson doesn't deliver a report with the requested information.