As far as I know, the photo uploader is working. I can't remember if I sent these instructions to you before or not, but in case I didn't, try this:
1.) First step, and this is critical, resize your photos to about 450-600 pixels. You accomplish this through photoshop or some other photo editing software. My father in law did this part of the process for me so I can't help you any more than that, but I do gather that it's very important to do the resizing BEFORE you upload the photos.
2.) Then go to the PianoWorld uploading site: http://www.pianoworld.com/Uploads/fileuploader2.html
This is going to give you a screen where you enter your login name, e-mail address, and then you browse for the location of your photo on your computer which you then attach. There will also be a box that says "file information". I have no idea what they really want there, but I just made up a title like 'first picture of new piano." Then you click submit. That is going to bring you to a new screen that will ask you to search for your name among submitters. This is the most confusing part of the process, because that part of the web site is not working and you will not find your name there. Just ignore it, and instead go back to the main file uploader site and repeat the process for each of your remaining photos.
3.) Within a few minutes, you should receive an e-mail from PianoWorld giving you the URL for your newly uploaded photos. You'll get one e-mail per photo. You will need to copy and paste these URLs into your message.
4.) To do that, go back to the thread where you want to post your photo. Click on the "full reply" box. This will bring up all the options you need. Write whatever text you want, and when you're ready to include the photo, click on the little blue-shaded box below called "image" (under the column 'instant UBB code'). That will pull up a little box in your message where you can paste the URL for your first photo. And then just repeat as necessary. But it is CRUCIAL to click that little "image" box; otherwise, all that goes in is the URL itself, not the photo in all its glory.