First you will need to get into the ProPhoto Customizer. ProPhoto > Customizer To access your template manager, next to your active template, click the cog Choose a template to customize and click the button on the bottom to select the layout
Select Base template Your base template are items that will be displayed on EVERY page, so keep this in mind if there are things that you would prefer to only be on certain page, those would belong in a Child Template under base (i.e. Homepage, Info....)
Replace all demo content with your own, change the logo as well as the Footer Block social icon links when you open the FOOTER BLOCK > ProPhoto Images
Select your Homepage child template to edit.
To change a widget, just click and the edit panel will pop up
Select your child template you wish to edit, all additional templates will have items for you to customize. With your included master PSD, add your image and save as JPEG. Insert that into the "Left Image" widget. Update all content.
Select your Portfolio child template Next, edit the ProPhoto Grid with your galleries you would like displayed
Open up your template dropdown via the cog. Make sure Base is selected, in the blue Template Details box to the right, select + Create Child Template. Edit the details and save.
If there is something you are just not finding, feel free to check out our FAQs page or submit a ticket.