Transaction - employee - expense report that doesn't appear in accounting records

We're trying to build a form that records employee remuneration and builds a history of it. At this stage we aren't looking to link it to our accounting reports and general ledger. The plan is to store the data, run a search to bring it up and export the information to excel to further analyze. We need to use the exchange rate information that netsuite stores.
The current form uses some custom fields, but also these fields standard fields - amount, currency, foreign exchange and foreign amount which converts the amount to the foreign amount.
Our biggest 3 hurdles are:
1. The employee transaction expense form feeds into to accounting reports and appears on there as an entry - even if the amount field is $0. Do we just need to change the report or scripts attached to all this?