For iPhone: Open app and mash the person logo at right bottom
Mash camera button at bottom center
Select photo you wish to upload
Type in title of photo and select "Only Me" in the drop down menu where it says "public"
Then hit the upload button at top right
Once the pic shows up, click on it
Once the pic enlarges, click on it again
Mash the button at the bottom center
Select copy link
Go to the post box on AlDeer and mash the pic button
Select insert a center floating image. Delete the http//: in the box and paste the link here. Then hit ok then post