Logical Formula Assistance Needed

Hi Experts

attached is a file containing annual report of four companies, i have created a formula in p&l(2) where if i select a company details pops up, i also have a formula where you can select the year to view which particular year to view the report and also the number of years you want to see the report ie you can select year 2008 and specify that you want to see 3 more yrs after 2008. my problem is how to write a formula so that the data under for instance 2008 or any other year selected will reflect correctly under that year.

pls help with the formula