Dern Blinkies Aren't Blinking!!

So I've been adding blinkies (banners) to my blog and well they dont seem to want to show their animation. I dont know if it's just me or I have to set something inside the bog? If you have any idea and help I'd really appreciate it! I'm also running out of room to move things around as my computer screen doesnt seem to be big enough for dragging. Grrr.