There is no built-in way of doing this. You can, and should add the ALT tag
to each picture, but that will not show with a mouseover. It is there for
text readers.
You can get the tool tips to work using javascript. Google "javascript
tooltips" and try some of that code. Use the insert html code fragment
feature.
If you have more questions about Publisher webs, then post in the web group
and we will try to help you there:
news://msnews.microsoft.com/microsoft.public.publisher.webdesign
or
http://www.microsoft.com/office/com...soft.public.publisher.webdesign&lang=en&cr=US
Please include the version of Publisher you are using, the URL of your site
and as much detail as possible.
DavidF