VLookup Question

i have a spreadsheet that data gets added to.

ex:

Column A is an a sub-product number and column C is a main product number and columns D thru O is the months of the year.

the sub number repeats for each main number and i need to do a lookup and grab the value from one of the months.

SO how do you do a VLOOKUP on two fields and return one value???

A B C D E F ..... - O
1 apples 00100 2.00 2.00 3.12 ...
2 oranges 00100 3.99 1.12 4.33 ...
3 bananas 00200 2.22 1.23 4.55
1 apples 00200 5.00 2.44 2.57
2 oranges 00200 4.02 4.33 2.98
3 bananas 00200 5.00 3.99 2.08

i want to get the value for January (D) product 00200 - oranges(2) = (4.02)

I hope this makes sense