Purchased app from Itunes on PC. Does not sync to iPhone 4

[errolgreer]

I purchased the User Guide at $4.99 from the store. It downloaded to iTunes, but does not get transferred to my iPone 4 during a sync. If I click on apps in iTunes it appears there, but I have no idea how to have it available on the phone itself. I logged an issue with Apple support, but due to the time difference from here in South Africa I haven't been able to phone them. (Also very expensive from here !)