1. To copy individual templates, click right / left mouse button ..and select "Save This File To Disk" Select "OK"
... WAIT until "Save As" dialogue box appears.
Change file format xxxx.ppt to xxx.pot (this is fault within IE5 hat places ppt extension)
2. Change the folder to store your file and select "Save"
3. Repeat for others.
The template may not be recognised as a PowerPoint file.
To correct that problem single click the .pot file icon and use 'Get Info' > Open .. with
and tell Mac OS Open with and tell to use PowerPoint and to then to change them all so that whenever you download any .pot files then PowerPoint will open them.