Java Blocked This Morning

I seem to be having Java plug-in problems with both Mac OS 10.6 and Mac OS 10.7 systems on our network this morning, in both cases Java applications are unable to run either from Safari or Firefox. In 10.7 I get a message about the plugin being blocked and am directed to the Java website to download an update, however, the version presented is the same one that is installed that is getting blocked (I downloaded and installed it anyway but the blocked message still remains). In 10.6 I get a message about an invactive plugin and when I click on the arrow to activate it it launches Apple Software Update which indicated that everything is up to date. Today is the last day in our pay period and our Timesheet application runs in Java so I really need to get this resolved quickly.
Does anyone have any pointers on reenabling Java?
Thanks in advance.

Apple slammed the door again on Oracle's Java this morning, due to its presence as a vector for malware intrusion. It will remain closed until Oracle decides to fix it, and Apple determines that it is no longer a threat.
You can override this protection at your own risk.
Warnings
By performing the following you understand and acknowledge that you are intentionally modifying OS X's built-in protection against the open security threat presented by Oracle's Java. In other words you're on your own.
By modifying OS X you may break your system.
Do not proceed without a backup plan.
I do not use Java because it is a security threat.
You will need Apple's Xcode. Download and install it here: https://developer.apple.com/xcode/
An application such as EasyFind will help find the file you need to modify. Download it here: http://www.devontechnologies.com/products/freeware.html
Using EasyFind or similar utility, search for the file Xprotect.meta.plist. Make EasyFind look like this:
Double-click the highlighed file to open it in Xcode. Click the "reveal triangles" under PlugInBlacklist until you find the highlighted entry for Java's minimum plugin version that looks like this:
Notice the entry String 1.7.11.22. If your version is something different than that it would be best to not proceed since it would be different than what my .plist is showing.
Click the String so that you can modify it, and change the String to 1.7.10 or earlier version of Java 7.
File > Save.
Quit Xcode.
Quit EasyFind.
You may need to reboot your Mac for this change to take effect.
This should enable you to use your Java-based timesheet application for today.
Subsequent updates from Apple will modify Xprotect so this will only be a temporary workaround, if it works at all. I cannot confirm that it will - see Warning #4 above.

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