Ok few questions:
This is the original carb to my st 100 trimmer motor but the problem is that it is gravity fed so i guess my question is where can i find a standard carb to fit it?
Also as u see there is a black carb mount, its plastic, and the mount nuts that are in it a pulling out when i tighten them does anyone no where i can get a new one(carb mount)?

First , that carb is NOT gravity fed ... if you note the first pic , where the nipple is coming up from . THAT is a diaprahm pump under there . And if you also note the little hole on the side of the carb that bolts up to the engine ... its called a PULSE HOLE ... this is where the vacuum from the engine comes thru and pulls on the carbs diaphram pump , causes the fuel to be SUCKED into the carb .
Now , you MIGHT need a new diaphram , seeing as to how a LOT of folks leave fuel in the them when they shut the weedies down which in turn literally stretches the little diaphram inside and causes it NOT to pump/suck the fuel a needed . ( new carb kits contain them )
And as far as the HEAT DAM ( little black plastic thingy that goes between the carb and the engine ) , simply get yourself some JB WELD and go at it with that .... will hold your nuts in place and make sure you CLEAN , and then clean again , the area where you are going to use it .... ( even though JB is NOT affected by gasoline AFTER its cured , it WILL NOT bond to surfaces that are impregnated with oils ( gas ) , so buff it , then use some good cleaner on it after buffing , then toss on your JB , throw a little heat to it ( for better curing - I use an old hir blow dryer ) and wait 24 hrs , then WHA LA .... done .

EBAY.... do a search for WALBRO and the go to the following link to check the numbers ( carb model ) and check the venturi size ... do NOT go over anything larger than a 9.0 venturi for that stock engine
http://wem.walbro.com/walbro/family2.asp

Littlestown on pic 3 can you turn the carb 90 deg. and show the pump side of the carb that not finished for the pump. The Diaphragm that is there now is for fuel metering. Here is a link[link]http://www.aerocorsair.com/id27.htm[/link] that may help.

well then just to get rid of the whole problem ill just mount my carb up above the gas inlet. Or get a regular carb but i have no clue which one i need.

Try one of these carbs, and blocks they fit many different weedwacker engines . measure your bolt hole center distance, and if it`s 31mm the 644 carb will fit ok (and most walbro carbs too)

http://cgi.ebay.com/Walbro-644-Big-b...QQcmdZViewItem
and
http://cgi.ebay.com/Zenoah-Insulator...QQcmdZViewItem

and any carb off a zenoah R/C engine