hi
i dont use firefox (or ie, before i get ridiculed) and was a little frustrated with the whole copy/paste/type/paste method that i had to use for the exchage. so i created this small batch file so that all you need to do is hover over the add to game icon on the exchange, and type the number into the batch file when prompted
hope it helps someone
(by default it uses iexplore to grab the assetid, as most windows pc's have internet explorer installed by default)
enjoy