Thanks a lot Darrel, as always, your first reply solved the problem. Just want to ask 2 more questions:
1) How can I run and compile the codes I made previously using Version 2.5. I mean to ask what changes I need or patches I need to install to run that version parallel to this latest one.

2)Now, I have this problem sorted, I am facing problem in using 2 analog channels side by side. Any special advise in doing this? Can two analog channels be used together provided ANSEL, ADCON0 & ADCON1 are set once and ADCIN is used for the two channels.
Thanks