I saved the following a while back...hope it helps
How to post a picture to the blogs
Click view source. then enter <img src="http://i149.photobucket.com/albums/s50/widefield81/trout.gif">
Then click view source once again and you'll have your picture. Then you can type and post.
step by step
open new post
click veiw source
go to PhotoBucket
copy the picture you want
paste it between <img src= & ">