My interpretation of your situation: You have files that are comprised of monthly pay stubs for a given year. You want to print only the pay stub from one month.
Now, assuming that each file has twelve pages, each page containing a pay stub...
You have to open the file. Then you select Print and in the Print Dialog Box that pops up, you have to identify the page you want to print. Thus, assuming I'm on track here, if you want the March 2012 pay stub, open the 2012 file and print page 3.
Apologies if I failed to grasp the question.