Please make sure UAC is Enabled and User is Admin user on windows 7.
How to reproduce?

1.) Install the latest 6u14 b03 JRE
2.) Run the jusched.exe for 7-8 Mins, and kill jusched.exe.
3.) Clean the cache from JCP.
4.) Modify the system date accroding to the FX AU schedule.
5) Relaunch jesched.exe and here is the output of jusched.log.
Thu Mar 19 17:45:45 2009
:: JavaUpdate NextSchedTime=Sun Apr 05 14:13:00 2009
JavaFXUpdate NextSchedTime=Wed Mar 25 01:57:00 2009
JavaFX: lastSchedTime=Wed Mar 18 01:57:00 2009
JavaFX: nextSchedTime=Wed Mar 25 01:57:00 2009
JavaFX: sleeptime (sec=461475, hours=128)
actual sleep time=461503073 msecs (128:11:43) for JavaFX

Wed Mar 25 01:56:04 2009
:: **************** Running jusched ****************

Wed Mar 25 01:56:04 2009
:: GetRunNow: lastFinish=NULL

Wed Mar 25 01:56:04 2009
:: GetJavaFXUpdateTimeKey: returning FALSE

Wed Mar 25 01:56:04 2009
:: GetJavaFXUpdateTimeKey: returning FALSE

Wed Mar 25 01:56:04 2009
:: GetRunNow: lastFinish=NULL

Wed Mar 25 01:56:05 2009
:: JavaUpdate NextSchedTime=Sun Apr 05 14:29:00 2009
JavaFXUpdate NextSchedTime=Wed Mar 25 01:57:00 2009
JavaFX: lastSchedTime=Wed Mar 18 01:57:00 2009
JavaFX: nextSchedTime=Wed Mar 25 01:57:00 2009
JavaFX: sleeptime (sec=55, hours=0)
actual sleep time=57444 msecs (0:00:57) for JavaFX

Wed Mar 25 01:57:02 2009
:: Timeout occured. Run JavaFX update now.

Wed Mar 25 01:57:02 2009
:: Started JavaFX Update process Command:C:\Program Files\Java\jre6\bin\javaws.e
xe -silent -import -reverse -javafxau -J-Dkernel.download.dialog=false "http://
dl.javafx.com/javafx-cache.jnlp"
Return:1 Error:2

Wed Mar 25 01:57:02 2009
:: JavaUpdate NextSchedTime=Sun Apr 05 14:29:00 2009
JavaFXUpdate NextSchedTime=Wed Apr 01 01:57:00 2009
JavaFX: lastSchedTime=Wed Mar 25 01:57:00 2009
JavaFX: nextSchedTime=Wed Apr 01 01:57:00 2009
JavaFX: sleeptime (sec=604798, hours=167)
actual sleep time=604823070 msecs (168:00:23) for JavaFX