Here you go - try this - it's very easy and will resize your photos for you - you can download it free here -
http://bluefive.pair.com/free95.htm
Scroll to PixResizer……Download the program..it’s really small and very easy to install – Depending on the size of your image you just have to click ONE SIZE (USUALLY 50%) or 460 Pixels and it resizes it for you...SAVE YOUR PICTURES AS JPEG’S or they will not show as thumbnails.
ONCE you resize and want to upload photos into a post ...
In your post, Scroll down and you’ll see Additional Options
Click MANAGE ATTACHMENTS
Click BROWSE to find the picture on your Computer
Double-Click the picture – then click UPLOAD
Click Submit REPLY