The MOL BitKeeper repository is:

bk://mol.bkbits.net/MOL

To get a copy of the source tree, do

bash$ bk clone bk://mol.bkbits.net/MOL mol-bk

To pull the latest changes:

bash$ cd mol-bk
bash$ bk pull

To build and install MOL:

bash$ cd mol-bk
bash$ bk -r co
bash$ ./autogen.sh
bash$ ./configure
bash$ make
bash$ make libimport
bash$ make install

 Online access to the mol BK reposity is available here. Note that there are additional repositories for osx-drivers, mac-drivers, linux drivers and boot loaders.
 

There is a rsync mirror of the developer tree (hosted by penguinppc.org).

To get the initial copy of the source tree, do

bash$ rsync -avz rsync.penguinppc.org::mol mol-rsync

To obtain the latest changes:

bash$ rsync -avz --delete rsync.penguinppc.org::mol mol-rsync

To build MOL:

bash$ cd mol-rsync
bash$ ./autogen.sh
bash$ ./configure
bash$ make
bash$ make libimport
bash$ make install