Verify the directory structure by checking that you have C:\jTask\jTaskService.exe
Copy the shortcuts in C:\jTask\shortcuts to a folder in your Start Menu
Follow installation instructions available from here.
NOTE: If you need to change the location of the jTask folder, you will need to modify all entries in referring to C:\jTask in the following files:
createTables.lax
jTaskService.lax
jTask Control Panel.lax
All shortcuts in the Start Menu by right-clicking and changing the Properties information
** The manual install version is configured to first look for a VM in C:\jdk1.2.2 but will search your system for other VM's if it does not find one there. (If you want to have it look for a specific VM first, you will need to modify the lax.nl.current.vm property in all of the .lax files)