Xperia X10 :: View Gmail Jpg Attachment Without Downloading Or Using Browser?

I got the X10 one week ago from AT&T. I was amazed that I couldn't install software other than from the Android Market; what the deal? Nevertheless, I used the Android Sideload Wonder Machine (after many pain staking days of trying to load the JDK & SDK) I finally loaded my surveillance system software and it works. However, the surveillance system also sends emails to my Google account whenever it sense motion in the room. When I access the email, the JPG file is attached, but I can't view it inline. I can only download it to view the picture. Given the email and the JPG attachment are related to security issues, I need a fast way of viewing the JPG file without having to download or use the browser. Both are time consuming efforts