I think I understand.....
This is the way I take a "screenie".
1. Pause the Sim when you think you have a nice shot.
2. Click on the "Print Screen" Button on your keyboard, may also be called "Prt Scrn", only use this ONCE and then follow the next procedures. This copys the picture to your clipboard.
3. Open up your Paint Programme.
4. Open a NEW canvas. In some programmes the shortcut is "CTRL" + "N"
5. Press "CTRL" + "V", this pastes the picture from your clipboard to your new canvas.
6. Resize the image and reduce the quality using your paint programme and then Save.
7. Upload to SimV for all to enjoy......usually!
For more details on image resizeing, quality reducing and different software available to perform this, look at the "stickey" posta at the top of the Raw Screenshots page. This post is just to help you get going.
Good luck
Joker 8)