Go to photobucket.com
Make an account if you don't already have one (Its free)
Once you're done and all, go to 'Upload photos' (It should be a green button or something)
Click on the photos you want to upload, and upload them.
Once you've got them into an album (itll do it automatically), then come back here, make a post, and click that little button up there that says Img
This '(img)(/img)' will come up. (But it will be in [] brackets, I do it this way so you can see it.)
Go back to photobucket, click the pic you want. Click 'share', and then copy the "Direct URL" code option from the share menu. Come back here, paste the code in between the brackets to look like this
(img)LINK GOES HERE(/img)
When you submit your post, it should show up as an embedded pic on the post.
Hope that helped!