If you put organize them into different folders (to make things simpler) and boot the disc via uLaunch or a ELF that allows you to browse the contents on the CD, yes you can.
Well either take the image URL, ending in .jpg or .png or an image file format, and use the "insert image" button and paste the image link there, or just copy and paste the picture into the status field and it will upload as an attachment and show up in your post.