2. Connect your iPad to your computer
3. Open ifunbox
4. Select "User Applications" (not sure this is even necessary anymore)
5. Click "install app" from the toolbar
6. Select the Monster Hunter ipa file
7. Wait for the install to finish
8. Play Monster Hunter!
For step 6. If you don't know where the ipa file is, just right-click the Monster Hunter app in iTunes and click on "Show in finder"