when u make a new thread there a button right by the smiley face that looks like a pin...thats the attachment button click that then browse ur file and ur done
If u want to start a new thread or reply to one if u look at the bottom of the box where u type theres something that says 'Attach Files
Valid file extensions: bmp doc gif jpe jpeg jpg pdf png psd txt zip'..if u click that this will bring up another box..this is where u can upload your piccies..they have to be on or under a certain amount on kb...hope this helps dude..