Most shocks are like that, they are not designed to be taken apart as the springs are under compression. If you're going to paint them the easiest way to mask off the piston and plunger is to carefully paint it with grease, just make sure it's well coated and don't get any on the springs!
Sharing pics is straightforward. I used to use Photobucket, but they've gone a bit weird so I now use tinypic.com only drawback is you can only upload one picture at a time and they only share, I don't think you can build albums.
Start composing your message on here, then when you want to add a picture open another browsing window on your pc.
Go to
www.tinypic.com click 'Browse' and find the picture on your pc that you want to share, click upload and when your pricture loads click resize and choose 'Message Board', you will then have to answer a security question which appears, just type exactly what it says on the screen into the little box.
You can then upload your picture onto here by right clicking the IMG Code box, then coming back to your message and pasting the code like this:
I know it sounds complicated, but have a look at the tinypic site and try it a couple of times, you'll soon get the hang of it!