Create A Simple Application Which Has 2 Forms?

I wanted to create a simple application which has 2 forms.the first one contains a combobox which has the list of names of reports.now i select this report and click on next which takes me to the 2nd form.there i have to enter 4 values(or parameters)like the date from and date to and other 2 values...using these 5 values i want to retrieve the respective reports from the archive folder based on these parameters...i just know how to select and move to the second form from the first..how do i achieve my goal of retrieving the pdf files.i want the result in a table form which will have column names of the parameters i pass and the last column with the report pdfs.