I need the brackets to screw on the scope that fits with screws on the tripod

The mount has a 1/4-20 screw that fits most camera equipment. If you have the scope (spotting scope) it should have that hole in the bottom of the mounting ring. If the screw is missing from the window mount then most 1/4-20 tripod screws will work or you may substitute a cap screw and flat washer, to work with an Allen wrench for tightening.

If the screw is standard, it is probably what's called a 1/4 x 20 screw. They only cost a few cents at your local hardware store (Lowe's, Home Depot, Ace, etc.). If it is proprietary, you may need to take the scope and the tripod to the hardware store and try a couple of sizes to see if anything fits.

Of course, you could also try bushnell's website to see if you can order parts.

There are only two types of dovetail bars and saddles. A "Vixen style" and a "Losmandy style". One can be mistaken for the other. You probably have a Vixen style. tighten both knobs and you should be OK. Many dovetail bars have a screw hole in the end to place a bolt as a safety device if the bar should slip on the saddle -- the bolt would catch it and prevent the scope from falling off.

You cannot find parts for that very low cost telescope. You can buy a tripod but the cost will probably be more than you paid for the scope.

Here are tripods:
http://www.telescope.com/control/mounts-and-tripods

Next time do not waste your money on these types of telescopes. Instead save up and buy something like this:

http://www.telescope.com/control/product/~category_id=classicdobs/~pcategory=dobsonians/~product_id=08942

Bring it in to your local hardware store (Ace, or Truevalue, etc.), generally one of those places will have just about any nut or bolt you need. Also apply a small amount of locktite before re-installing to screw, this will keep it from falling out.

Usually the camcorder has a hole next to the mounting screwhole. The plastic nub fit into the unthreaded hole, the mounting screw screws into the threaded hole. The nub is to help prevent the camcorder from rotating while you are using it on the tripod.

added a spacer made from a truck inner tube. the screw from the tripod still has 2 full threads threading into the bracket on the telescope.

I once had an adaptor that would allow this kind of transition but it is odd that a Sony would have ASA threads instead of metric.

If you have a major camera shop (not Mall-wart) nearby they should have these.
If not, check with Ritz or Beach Camera.

As a last resort, the major chain 'home-improvement' stores may have 'wing screws' that could work.

Never seen one in stores the ony replacement I have seen was the one that goes to the tripod and then screws in the botton of the camera...

Hardware stores should have thumb screws in different sizes and thread lengths ... box stores , local hardware ....