I think the webpack is powerful for most of the cases. Why bother to get a full version? I think you should buy full version if you need it and also you can get support from Xilinx.
Hi my friend.
Your answer is yes. You can download the full version of " XILINX ISE 8.1I" AND "XILINX EDK 8.1I" but first you need to instal sharing softwares and then try to download them. I have downloded both of them by this way.
I hope this can help you.
Be successful