Here go

Question 1

Q: Where do I get the sources?

all source is located at http://svn.charonmedia.org/

Question 2

Q: How do I compile the whole shebang?

# Download snapshot (391MiB)
wget http://www.charonmedia.org/lmce-1465.tbz

# Test checksum to ensure it was downloaded intact.
md5sum lmce-1465.tbz # should be b3d4b3f6b33ff5e6c4641390f2314095

# Update snapshot (uncompressed: 1823MiB either snapshot or updated).
tar xfj lmce-1465.tbz
cd lmce
svn update

# Build from source (optional) to 3692MiB, total source+build = 5515MiB.
./configure
make


Question 3

Q: How do I compile and install a single library/application?

To build Applications, you should fetch it from the SVN repository, then go into Application directory and run:
dpkg-buildpackage -rfakeroot -b

This will build the Application packages (bin,debug,dev) and will put them into parent folder.

Note that if some required packages are missing, it will give you an error and stop. You can install required packages and retry.

got a question been reading on compling mythtv and seeing the source, with this syn will it compile and have all the dependecies to work "integrated" within linuxmce if i patch it. 

not sure if this will help you all i am sure you all have seen it

http://misterhouse.svn.sourceforge.net/svnroot/misterhouse/trunk/lib/Insteon_PLM.pm

here you go bro look at the cpu section but for hd you at least need a 2.8 p4 at the very least

http://wiki.linuxmce.org/index.php/Hardware