http://www.resize2mail.com/index.php
That is the easiest website to use for resizing photos... just upload the photo and select either the first size (360x480) or the second (450x600) to resize the picture two, same with the landscape photos, first and second sizes... then just click OKAY!
Can't wait to see!
ETA... Ignore what I said, you figured it out... but I'll leave what I said anyway incase you decide to go look at the site anyway.