hello...im new at this..dont know much

i installed Arcsoft 3.0.26.12C on my HTC dual touch--by mistake
now im trying to remove the program from my phone..but it says error..Alltel Arcsoft was not completely removed. Do you want to reove it from the list of installed program..when i click yes...its still there..in my list of programs..is there anyone who can help me get rid of it? thank you so very much