To delete a picture you just need to highlight the picture then click the soft key options then click delete.

Delete the game and start over.

soft page break

Delete all caffeine from your diet: coffee, soft drinks, & chocolate.

You must select options which is the right soft key and then select delete. If u do this inside a message it will only delete the single message. If u do this while looking at list view (which shows inbox, sent, drafts), you will have the option to delete all messages or all in a single folder.