Debian has a very cool thing called "apt" here you will find a lot of programs
# apt-cache search tilp
tidev-modules-source - Sources for drivers for texas Instruments calculators link cables
tilp - TI <-> PC communication program for X
tiemu - Texas Instruments calculators emulator
So as you can see the "tilp" package is already in the Debian repository's, all you need to do now is grab them heres how.
apt-get install tilp
and your done, hope this helped.