If you're upgrading from a previous version it is very important do the following:
1. Make a copy of your MacWebCam documents. This new version will read old documents, but will write them out as new documents, which won't be readable by the old version, if you choose to go back.
2. If you're using the plug-in, you need to change your HTML code to the new format;
Old format: <IMG SRC="macwebcam.mwc?doc=mydoc">
New format: <IMG SRC ="mydoc.mwc">
3. Now when you save a document, it changes the base name of your media files. When you create a new document, it is recommended that you immediately save your document. It is further recommended that you keep your document names and the file name that is created the same (e.g. mydoc & mydoc.jpg.)