Don't know why it's not working for you, on my verizon iPhone 4 works like this:
1 Take pic,
2. Select Camera Roll Icon (lower left corner)
3. Select Camera Roll button if a picture is displayed (upper left)
4. Select Share icon (lower left corner)
5. Select 1-11 pictures
6. Select Share Button (lower left)
7. Select E-mail or MMS
Note that there ihe limitation on the number of pictures
that can be sent is lower on MMS compared to email. If
the MMS alternativet cannot be selected, reduce the
number of pictures.
1-11 pictures is only an example from my phone, and it
differs depending on pic size etc.
Good luck
\o/
Stefan