The "Old Model" frame also has the pinched sights. Which are a V-notch and narrow front blade and rather difficult to use. Unless, of course, it's a flat-top target model like Bob's. The New Model has a square rear notch and blade more like a 2nd generation Colt.
You can chose to not automatically show pictures in your profile settings.
No, you need to resize your pics like everybody else. A good size that allows most users to download and see them without scrolling back and forth is 800x600. Yours are 2586x1707 and that's just way too big.