thanx,but how can i have a programmer circuit without driver ic like 74HCT541.i found a circuit but i don't know what programming software should be used.see the circuit here:There are no simple programmers on serial port, but if you go for parallel port then you can find many. check this link for a programmer circuit
http://www.kmitl.ac.th/~kswichit/IspPgm30a/ISP-Pgm30a.html