Log in to your AlohaPro account.

Go to "Manage System."

In "General Settings," find the "Property Images" and "Header Images" sections.

Click on "Upload a File."

You can choose an image you've uploaded before or upload a new one from your computer.

Select the image you want to update and click "Update."

This will update the main image for the selected property.

To change images for other properties, select the property from the top left corner.

Repeat the upload and update process for each property you want to modify.