How to compile the partgui source code: You will need many libraries to compile the source code:
First, you need to install e2fsprogs, with its libraries (./configure --prefix=/usr && make && make install && make install-libs).
Then, parted needs libreiserfs. Next, install GNU Parted 1.6.x.

You also need Qt-3.0.5 or newer from trolltech (X11 of Embedded edition). First, you have to define the QTDIR environment variable well.

If you have several Qt version installed, redefine QTDIR to the version to use. For example: export QTDIR=/opt/qt-embedded-free-3.0.5 to use the embedded version.
Once partgui is extracted, run ./configure. Here are the ./configure options to use:
If your Qt edition is multi-thread (you have such a file: $QTDIR/lib/libqte-mt.so.3.0.5), you will have to add --enable-mt, else add --disable-mt (you have such a file: $QTDIR/lib/libqte.so.3.0.5). If you use Qt-embedded under the Frame Buffer you have to compile with --enable-embedded.
Then, type make && make install, as root.

Running PartGui: The name of the binary file to run is: piguicqt
You don't have to add options -qws under Frame Buffer. If you want to speed up the startup, and you don't need space usage informations about partition, you can type: piguicqt -D

Dependencies problems: You may have problems when running PartGUI, if you use the compiled version. PartGUI needs a lot of libraries, and if they are not installed, you will have to do. You can type ldd piguicqt if you want to have the list of required libraries.