This is the universal method to resizing pics if you have Windows, Probally even MACS!
STEP 1) Open MS Paint
STEP 2) OPEN YOUR PICTURE
STEP 3) Go To IMAGE
STEP 4) DROP DOWN STRETCH/SKEW
STEP 5) PIC A PERCENTAGE OF HOW MUCH SMALLER YOU WANT YOUR PICTURE
STEP 6) MAKE IT ATLEAST AS SMALL AS THE 'WINDOW' IN YOUR PAINT PROGRAM. Chances are... thats how big it needs to be!
There are faster/easier ways to do this if you have Paint Shop Pro and the likes... but this is the universal method - no more big pics, ya hear?