Thank you for your post. Here is the link http://download.macromedia.com/pub/coldfusion/10/cf10_mdt_updt.jar to download the Mandatory update.
To install the same:-
Open the command prompt.
cd to C:\ColdFusion10 and then run the command as follows C:\ColdFusion10\jre\bin\jre\java -jar cf10_mdt_updt.jar
Give full path of the file cf10_mdt_updt.jar depending on where it is downloaded. And follow the on-screen instructions.
Hope this helps.
copy the mandatoryupdate in c:\
open command line as administrator
cd c:\coldfusion10\jre\bin\ (enter)
java -jar c:\cf10_mdt_updt.jar (enter)
check new version in CFIDE->settings summary
On Windows, it's also a good idea to open the command prompt "As Administrator" to run the updater.
Thanks for asking this question -- how to install the .jar. I felt like an idiot when I got that "no java" response. This helped.