Welcome r4sons. Glad to have you onboard. The easiest place to post a picture is in the Photo Gallery, just click on the link below, and then select what pictures you'd like to upload:
http://www.yorkietalk.com/gallery/uploadphoto.php
The pictures in attached pictures (within threads) need to be under 150kb in size or the server will reject the picture, however, the pictures in the Photo Gallery can be of any size.