VB6/.Net - Modify code

I have an existing project, which currently does most of what I need. I need to alter the code a bit for a new version. Tasks: 1) An existing set of routines, will return an array of values. Till this stage there isn't any real modification 2) Once the array is returned, the existing code does some calculations. The new version will need a new set of tasks to be done here. (a) It will check if any of the array values are returned in a query. (b) For values which are returned, there will be 2-3 actions after that. (c) For values which are not returned, there will be a different set of actions, and then an insert into the above mentioned table 3) There actions will be anything like send mouse click/key (code available) I'm very certain it will not take more than 7-8 hours at best, as I am myself a developer with 17 years of experience. I can guide the developer on how to do this, and hence, this will not be a complex task to complete