how to make use of 89s51 timers

can any guide me how to use timers and counter of 8051 ...........

there are register to control timers of 8051 just like any other controller..
TCON, TMOD, THx, TLx etc...
just take a look at 8051 user manual Chapter 2, section starting from TCON page 44 and also consult 89S51 datasheet.

User Manual Link:
http://www.intel.com/design/mcs51/manuals/272383.htm

If you did not understand anything please ask openly stating what you did not understand.

sorry somehow i am not able to place link here.. server firewall is blocking it..
so just make use of google and search for following
"MCS 51 Microcontroller Family User's Manual"
the first link that comes from intel's website will be the 8051 user manual study it carefully