Hi Boz and welcome. The BB software allows you to post only the web address of a photo. You need to open an on-line photo / web account ... Photobucket for one but there are several others. You open an account and upload the pics from your hard drive into the account ... the pic files are stored on the web. The photo host will provide you an 'IMG' / image web address telling the BB software where to go and look for your photo.
When you are drafting a post, you paste the 'IMG' address into you draft post ... click Preview to make sure that you got the right address and that the BB software is able to read what you pasted in ... but ... first things first; open a web photo host account somewhere. You might bungle the first one or two attempts ... if so, that will put you in the company of about half the members here :wink: Again, welcome to LTG. CJ