mail.app bug ?

I attend (and administer) a photography site called Fotopoint Pt

When one of our photos get a comment from another user we are notified by email. For example like this: " The photo "-" received a new comment. You can see it in http...fotopointpt.com/displayimage.php?pid=3814 "

These emails are always correct when read in Mail.app on my iMac or even in iPad with webmail (Safari or iCabMobile).

However, when read in Mail.app of the iPad the links appear wrong.

In this case I give an example it appears ...pid=814 instead of ...pid=3814.

That is, the same message appears in iPad mail like this: " The photo "-" received a new comment. You can see it in http...fotopointpt.com/displayimage.php?pid=814 "

The number 3 is not there !!!

This means that, if we click on the link gives error saying that the photo does not exist.

Bizarre!!

Has anyone found the same thing?