"Parse error" when updating swype
From Swype Forum:

Swype 3.25 update problems - Parse Error, Data Error, Download Failed, Password Reset
[snip]
If you are experiencing either of these problems please uninstall SwypeInstaller and get it again from our beta site: http://beta.swype.com/android/get This should get you up and running.

Don't forget to uninstall the previous SwypeInstaller (I don't think you need to uninstall Swype itself, only the SwypeInstaller).
If you still have any issue after uninstalling and reinstalling SwypeInstaller, you should bring the issue to the Swype Forum; they will be able to help better than anyone here.