It depends....if you upload your picture on here or if you have it hosted on a photo cache site like photobucket.
When replying or starting a new
thread, look for the button below and left of the text box you're typing in and select Go Advanced. Then find the paperclip icon above the text box and click it. A new window will open. In the upper right hand corner find the button that says Add Files and click it. Then click Choose File or Browse. Once you have found the picture you wish to use, double click it. Then click upload. This may take a few moments. You can do this multiple times. Once you have the selected photos uploaded to your photo manager, then look at the lower right corner of the window and select Insert. Finally, click done.
From a place like photobucket, get your IMG data from that photo, then in the reply window look for a picture icon...next to the film strip icon...and click that. A window will open. Paste your IMG info in the space provided, then click OK.
Once you are done with your photo inserting...then hit Preview Post to see it before you post it or Submit Reply to go ahead and post it. I hope this was helpful.
