Here's another option - many beginners have had luck with this program - everyone is right - SAVE your pics as JPEG or Gif files - the .BMP will only attach...no thumbnails
I've posted this before but here is another program if you still have trouble - it's very very easy also:
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 400 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
Click the picture – then click UPLOAD