For attachments just scroll down on the "reply to topic" page to the "attach file" section and browse to where the file is on your computer. To insert a picture into the reply the picture would need to reside on a web server, like if you have your own web site or if you upload your pictures to a site like webshots. If you have more questions just ask, it'd be great to see some pictures since it'll be a while before I can get to Europe myself!