1) Go into the Compose Mail
part of your Yahoo Account and
then click on EDIT ATTACHMENTS
2) Click on Browse
3) Click on Attach Files
Once your files have attahced, they should show in the yellow
table in the middle of that window, like the one to the left.
4) Click on Done to return to your compose e-mail message
Note: Always add attachments last.
See the Attachment Tips page.