I have a file (.sis extention) I would like installed on my new treo pro (sprint). I am googling around and from the doc's, I need java installed. Is this true? This is my 1st treo, and from my initial reads on the software, the .sis should install on any phone, but this one has me a bit confused.

I was able to transfer the file over with the active sync, but when I tried to run from explorer it wasn't happy and just said to install from the computer.

Thanks.