The iPhone browser will not allow you to upload files (photos) from it. This is a bug/feature of the iPhone. To get around this "feature" we use the external App called CliqCliq to allow us to upload files. The TenPer web page will exit and run the Cliqcliq application so you can pick and upload your images. See below for a link to the application.
If you docked the TenPer application to your iPhone this will mean the WebApp will exit and direct you to the CliqCliq application, you need to log back in after you use the application, to get back to your profile. Sorry about this, since we are not an APP in the iPhone store this is currently the solution we chose. Once Apple fixes their browser this will no longer be needed, until then, use this or a desktop browser.
You can load the CliqCliq application from the iTunes store.