While I know I can't be of much help with your signal generator, I thought it might help to let you know that there's still some issues with your photos. The first comes up as "Not Found" and the other two are there but are HUGE and are loading really slow, even with my hi-speed connection.
I usually use
http://imageshack.us/ to upload photos, and I copy/paste the link here with [ IMG ] before and [ /IMG ] after the URL. ( without the spaces, of course ) The "insert image" button in the advanced menu here on VK will do it for you automatically, and you can paste the link into the box that comes up, without typing the IMG stuff. Imageshack has a resize thingie you can use as soon as you've uploaded the file. The size for message boards, or the 15'' one should work fine.