Just a note to those new to G5 and for all G4 users, original Add Ons, tweaked for G4, G4.5, and G5 are available. I don't know where to find them on G4 and 4.5, but on G5, if you go to the main page, with the P-51 illustration, go to downloads and you 'll see Add Ons there; you can probably download to G4 and 4.5 from there too. RF has redone these and uploaded them for us to download free! Just follow the easy directions and suddenly you will have alot of new planes in your G5 suite. Just remember that planes that have already been updated or tweaked in G5, that come from add ons, will not replace the G5 ones. Makes the price of G5, and G4.5, worth it, because I only had three original add ons; now I got them all and no file conflicts!!