There's 2 ways to post pics. One is to upload them here at CT, but as you see, there's a size limit. The other is to upload it to an offsite hosting server, then link it in your post using the
button above.
If you do the 2nd option, make sure to resize your photos to a max of 800x600 or it will be gigantic on the forums here.
The program I use to host and resize is Picasa, but you need to have a GMail account. One site you can use, and that will resize your photos for you is
ImageShack
or
photobucket
or
tinypic
you can even use facebook or myspace