you can get E812 & E900 standalone from this link
http://edelivery.oracle.com/
I think you need to register yourself and then follow instructions, some of E812 instructions are as follows
Open the E-Delivery web site, and enter the following values in the drop down boxes
Select a Product Pack: JD Edwards EnterpriseOne
Platform: Microsoft Windows (32 bit)
Click Go to display the results.
In the Results grid, select the radio button for JD Edwards EnterpriseOne 8.12 Applications/8.96 Tools Media Pack with Technology Foundations for Microsoft Windows (32-bit).
Scroll to the bottom of the grid and click the Download button for the row JD Edwards EnterpriseOne 8.12 Standalone (Part 1 of 3).
When prompted, click the Save button.
Save the .zip file to the temporary folder created in the first step.
After you finish downloading part 1, click the Download button for the row JD Edwards EnterpriseOne 8.12 Standalone (Part 2 of 3).
When prompted, click the Save button.
Save the .zip file to the temporary folder.
After you finish downloading part 2, click the Download button for the row JD Edwards EnterpriseOne 8.12 Standalone (Part 3 of 3).
When prompted, click the Save button.
Save the .zip file to the temporary folder.