Just to echo Lurok there are people that will help if asked.
The main issue that is the lack of Max 3.1 which today is the only package (using the plug-in from the SDK) that can export bridges properly. It took me nearly 3 years to get my bridge in game and almost 8 months to learn the tricks to get it working.
The way I learned was I took an exsisting donor bridge (in this case the Ent-A) for the TWOK bridge and renamed the file names to suit. And one by one you replace each animation for the customer ones needed for your bridge and finally you have you a full working bridge that is full of bugs. So then you have another go around fixing the lightmapping issues, animation issues or crashing to desktop when you go to red alert some other issue. Then you beta test and after you fix all the minor things you missed ( and you will miss something small ) you are ready to release.
I've done acouple of bridges now and I'm still learning, I'm a model maker and other than renaming scripts and file names have little idea of how the scripts actually work.
Saying that don't get discouraged, I have offered others help with converting their bridges in Max 3.1 even animations where needed so all is not lost