Can't uninstall XCelsius 2008 SP1, in order to install SP3.

Hello,

I'm attempting to uninstall XCelsius 2008 SP1 (FP3), in order to install SP3, as per the instructions. However I am running into the same error message that is found in this thread: [sp3-wont-install-because-i-can't-get-current-versi|sp3-wont-install-because-i-can't-get-current-versi].

I am receiving the same error code u201Ccanu2019t find Xcelsius.msiu201D and then u201CError 1706.u201D

I attempted to follow the instructions to edit the registry, but could not find the string "MediaPackage" anywhere, so I don't know what my next step should be. Can anyone help me out with this? Thanks!!

- George