I just spent a happy hour in the test forum trying to attach a picture to my message after a few embarassing failed attempts. In the end I gave up with my normal browser and tried explorer and it all worked.
When you do the insert with mozilla it does not put the text in the message therfore you never get the picture. You can manually create the link by copying the 'Link' field from the 'Insert an Image File' window i.e. _uploaded/20037238598_oly_aprilia.jpeg and then chucking it inside and block and prefixing with '/members/' like the following (remove the # markers though):
[img#]/members/_uploaded/20037238598_oly_aprilia.jpeg[/img#]
When you do the insert with mozilla it does not put the text in the message therfore you never get the picture. You can manually create the link by copying the 'Link' field from the 'Insert an Image File' window i.e. _uploaded/20037238598_oly_aprilia.jpeg and then chucking it inside and block and prefixing with '/members/' like the following (remove the # markers though):
[img#]/members/_uploaded/20037238598_oly_aprilia.jpeg[/img#]