Tell you worker in cpt.

If no one comes with any input in this thread, ask your friends in  here to get in touch with immigration attorney.  If they ask you , even if you say no they will find it out.  My two buddies came here yesterday and POE was houston. No questions asked! one of them worked on ssn for about three years.
Good luck !

*worked

 thanks for the reply guys!!! won't they find out if i lie and tell them i worked in cpt!! plus is it okhay if i tell them i worked by authorization of college for few hours!!! will they know that??? and i worked for like 6 months only but i did filed tax too!!! and i have transferred to community collge!! i have few frens who told me that once u transfer to a different college then your old records are wiped out!!! is it true ?? and to 
default 061 yeah few of my frens returened few days ago to west virginia and they have been working for past three years!!! and i have some sort of feeling that !! only those people are checked who have poor academic perfomance and have been in police case!! i might be wrong!!though!!1 do you guys have any idea how strict is washing dulles airport ??

Don't sweat over it man. You'll be fine.

 most likely, you wont be asked. In the rare case that you are asked, don't lie, they will catch you right away.
Never say you worked in CPT because when you work in CPT, your SEVIS should show it!! 

But like I said, you will probably not be asked about your employment.

Whatever happens, please share your experience later. That might help others like you.

 thank u guys for the reply!! i will try to share my experience once i get there!!!