There is a problem with the Safari browser on both Macs and PCs: images inserted into your WOW page cannot be edited after insertion in the WOW announcement editor.  This is a problem specific to Safari, and does not occur with other browsers.

If you are a Safari user (usually only Macintosh users), please download and use Firefox as your default browser for working with your WOW site.  www.firefox.com

The guts of the editor are licensed froma 3rd party, and it may not be possible to fix this Safari limitation in the near future.