hi
IMHO the leap from 4 to 5 was huge, they're almost beyond comparison, in hindsight. When 5 first came around it took a bit of getting used to (putting it mildly) the altered interface and programming style. BUT, having said that, knowing what I know now I would without doubt buy 5 and not even think about 4. If you purchase 4, you'll no doubt get to the stage very quickly where you're noticing Flash pages which utilise 5 programming which is unavailable to 4 and end up kicking yourself. Also, and probably most important, although the programming is 'kind-of' similar (but not really) between 4 and 5, there's absolutely no doubt that F6 will retain the programming style adopted with 5, so when you 'next' decide to upgrade you'll already have a grasp of the programming techniques involved.
Having said all of that, in terms of Tek-tips and asking for help, it won't matter what version you decide to buy, you'll receive the same level of help from everyone in here.
Good luck
dave davdesign@pinkzeppelin.com
^^^^^^^^^^^^^^^^^^^^^