[JAVA3D] installation problem

[Lorena]

i'm sorry to bug u with very neophyte querries.. but i just cant start
working on java3d because of this.

i have downloaded the java3d-1_2_1_01-win32-directx-sdk.exe having 4576KB
bytes.... however,, while installing it i only got the "preparing to install
dialog" then the cursor gets buzy for a while then, nothing happens... i
wanted to know if the same thing happened with ur installation.. also,
unfortunately, i dont have the dll files in my C:\File
Programs\JavaSoft\JRE\1.3\lib\ext directory after installation.
also, if i'll set the path/classpath in my VM, still the source code  doesnt
work. i am attaching here the complete java codes including the PickScreen.
i hope u could help me with this.thanks in advance...
ren

PickScreen.java

DisplayLines.java