Hello,
1) About image format - try rename image from 001.jpg to test.jpg for example.
If it not help, give us
full FTP and admin access
and our team will try to find solution special for You, FTP and admin access You can send to our contact form.
ordasoft.com/contact-us-form
Link on website
Joomla Admin
username
password
FTP
FTP host
FTP username
FTP password
2. Map issue - in your case problem not in map, but in location of house, You need set location during adding house - please follow attached image.
3. By default we use our API, but you can change it follow Google documentation
developers.google.com/maps/documentation/javascript/get-api-key
Thanks
Taras