that tar file is just a blinky application.
you can download full examples from ti http://www.ti.com/lit/zip/slac080
and change a few lines to make it work under mspgcc
if you download examples from ti and try to build them, you will get
errors caused by different header files, macros, etc. most simple
examples can be converted easily so that gcc can build them. the most
noticable problem is how the interrupt handlers are written.
in CCS they are as such
__interrupt void PORT1_ISR(void)
and you need to change them to this, plus adding one header file
interrupt (PORT1_VECTOR) PORT1_ISR(void)
there may be other macros missing in gcc in more complex examples, you
will need to find or create substitutes for them.
i also had a script to convert most examples so that they can build w/
see my page here, scroll down to the "converting CCS examples for GCC"
section, u can cut and paste a small perl script that converts the
examples for u.