Not sure why this happens, but I was trying to create an SSIS package on my work machine (this'll be my first SSIS package since DTS died), and recieved a weird error:

Failed to save package file "C:\TEMP\tmp18D.tmp" with error 0x8002802B "Element not found"

Turns out that this is due to MSXML6 not being registered. I found the solution here:

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2450699&SiteID=1

Basically:

To register MSXML 6.0.
1. From the Start menu, click Run.
2. Enter the following command:. regsvr32 %windir%\system32\msxml6.dll.
3. Click OK. ...

Hope this helps someone else, like it helped me.

~L