FC 7 booting problem

[SALMAN AHMED]

   I installed Fedora 7 sucessfully and using it very well , but after I
   installed windows XP boot loader options for FC7 disappered, although
   linux drives are still present as it is. Also on windows xp I have already
   activated list of operating systems visible for 20 seconds. But it did not
   work. should I have to install FC7 again. Please give opinion/recommendataions.
                                                                                     
Regards
                                                                                   
 Salman