You have to think opposite of how you normally would send an e-mail. On the iPad, you have to be in the app from which you want to send the e-mail - versus being in the e-mail program and searching for the attachment.
For example, if you want to send a picture, you have to be in the Photos app. From there, you select the photos you wish to mail and an e-mail pop-up will appear for you to fill in the contact information. Then, when the e-mail is gone, you will still be in the Photos app.
Again, it's just the opposite as that on a personal computer. Hope this helps. Let us know how you get on.
Marilyn