How to Enable Touchscreen

Hi.. Im using ARM 11 Core board. I have insalled Qt 4.5.2 on my ARM board. Im able to execute examples from keyboard and mouse but i dont no how to ENABLE touchscreen,
What is first thing to be done.. i have downloaded TSLIB1.0 zip file also... I think i need to ts.conf file by removing the comment raw_input........... rest delete lines.. then i start compile by using procedure ./autogen.sh..............

Here next any Environment Variables must be passed on my PC or wat? plz clarify this.. if Wat are that Env var?
then again should compile My Qt 4.5.2 (./configure, make, make install)and port the libraries to board.. next if i want to execute any examples ts_calibrate.. or how to test whether my touch screen is working fine or not?

Thanks in advance....