When I did mine, I found it easier by using a helper, to turn the steering wheel while I adjusted the trackbar length, measured, had the steering wheel turned, adjusted the trackbar length, measured, and so on. When the steering wheel is turned, the front wheels will help move the body over the frame.
As to pics. No, you don't need to upload them to a website. There is a "Manage Attachments" button when you start, or reply to, a thread that will allow you to upload pics. There is a size restriction however.