how do i know whats on the PIC after time

if i keep on loading stuff on i will need some idea of what s there and to delete stuff i no longer need ,how is this done ?
thanx

Presumably flclear(0)

but supposing i dont want to delete everything just stuff i dont need ?how much functions can i keep on adding on before its full up .

flclear(1) will only delete the functions in the last flsave("")

i have loaded on the flash10 and got it running ok .
then i modify to flash portB 0 and save it and load it on .
but i cant get the led to flash on port B 0 pin
it stays flashing on portA 0
do i have to erase the first prog and then load it on ?
and how do i do this ?
presumably when i do go flash its running the first prog

It is possible to erase the user Flash area using flclear(0). See also this link to FAQ