Earlier it was my friend who witnessed a similar issue. now it's my turn. when i tried to Create a SSIS package after new installation. The error shown this time was little different but the solution is same.
Error: "Failed to save package file "C:\TEMP\tmp18D.tmp" with error 0x8002802B "Element not found"
solution is we need to call "regsvr32 msxml6.dll" from Start -> Run.
Googled for What is regsvr32.exe? and found the following:regsvr32.exe is a process belonging to the Windows OS and is used to register dynamic-link libraries and ActiveX controls in the registry. This program is important for the stable and secure running of your computer and should not be terminated.
Hope it helps :)