Thanks for the reply...
I actually noticed that the push pins are now part of the extension. In fact, I see that they are created in a subfolder: google_javascript/images. So I uploaded this images folder to my server. It contains four PNG and two GIF files.
I've tried deleting the maps from my Web pages and then re-creating them using the extension, but the push pins and transparent backgrounds created by these six images still do not display. The map and the callout box with the address appears, but not these additional images.
I even tried going into the wagmp_map_XX.php file and making the references to the images absolute instead of relative. This did not work either.
Here is an example: conventioncenter.php
Any suggestions? Thank you for your time.