its best to first off open the photobucket.com account and upload your pics, then go to the members ride section of this site then add your specs in a new topic, then go to photoucket and you will see an IMG code for each pic, copy each IMG code and paste it into your new thread
you can not upload pics to the members riders page it is a script page only..to upload go to members cars and upload your pics there, you will have to make a new topic or if you already have 1 a new reply, and copy and paste the link from photo bucket to the new reply..... that should work for ya
the images can be displayed in a topic copy the IMG code in your photobucket account, on mine i put the mouse cursor over the picture and it brings up a menu then you will see IMG code, copy the code off photobucket and paste it onto this sites quick reply box.