A. If you need to download an earlier version of the WordPress StoreLocator Plus developer plugin, go to the WP developers plugin directory. Select the version you need , download.
You may also want to check out this article:
Store Locator Plus allows you to set a custom marker for all of your locations.
Start by uploading the marker to a web accessible location.
Go to Media / Add New in the WordPress admin panel.
Upload your marker.
View the attachment details for the newly uploaded marker and copy the URL.