developing hints appreciated

[pure_evil at mail.bg]

Folks, I'm working with Dan Kegel on the idea of a winecfg/control panel 
merger; I did a .cpl or two a few days ago, but it seems I didn't quite 
understand the rules of the dev on wine/ or on linux for that matter :(
I need someone to show me the ropes...
Basically, The Toolbox. 
Question 1: I need to mess about with winecfg. I want to compile only 
winecfg.exe so I can immediately see when I made a mistake /rather than 
trying to build the entire source of wine/. What's the console command(s) I 
need to execute in order to get a winecfg.exe or any other single file, 
executable or otherwise out of the source /preferably not overwriting the 
real one in use/?
Question 2: The cpls/any additional executables that have to be added to wine 
have to be in source form (duh!). Any particular quirks I should know about?
Say, example.exe has to be created when wine is built; it goes into "c:
\windows\system32". Is there anything special (some obscure settings?) that 
needs to be done in order for "./tools/wineinstall" and 
then "wineprefixcreate" to create "c:\windows\system32\example.exe" out of 
the source located in "<winesource>/programs/example"?
Sorry if the questions appear newbie-ish :(