Original iPad users who want to run iMovie on their original iPad shouldn’t fear as iMovie can work on their iPads… without a jailbreak. The first thing you need to do is install the latest version of the iPhone Configuration Utility software (Mac and Windows), which was updated to version 3.3 yesterday.
Open the iPhone Configuration Utility, click applications on the left side and click open iMovie. Then connect your first generation iPad to your computer, and then click the install button in the configuration utility software. Now you should be good to go. Let us know how it works out for you, in the comments.
via fscklog