xforms build help

I've got my build environment setup on win32 working great. Now I want more. 
Any help would be greatly appreciated.

1. Building seamonkey locally with xforms support works great, but for some 
reason building firefox with xforms support built in doesn't seem to work. 
Is it possible to do this or is there anything special I need to do?
If this is a dumb newbie question I apologize... it's also possible that I 
did something stupid.. who knows..
If I'm stuck on seamonkey that's okay, but I'm more of a firefox kinda guy.
2. Are there pending patches that you have included in the xpi build or any 
that you would recommend applying (gecko or xforms related).. there appears 
to me to be quite a few in the works.. so i feel a bit over my head.. :)
For example the svg status blog update that says not only what's checked in 
but what's "lurking". I wouldn't mind helping with maintaining something 
like that if it would be helpful and folks are interested.
3. I'm very interested in working with compound documents - namely svg and 
xforms. Before I jump in with both feet, are there any really big holes in 
this that I should avoid? I'll post any bugs I run into obviously, just 
trying to avoid too much wasted effort.

Any help would be greatly appreciated.
-Andrew