First, you're wrong - there certainly were some problems with avast! 5 when it was released, but I dare say it contains less bugs than avast! 4.x today. And, on most computers it's faster and uses less memory than avast! 4.x (especially the updating process is terrible in avast! 4.x, both in terms of CPU and memory usage).
Searching the forum through google will hardly give you any meaningful results - most users post here only when they think they have a problem or don't like something.
Second, it's certainly not going to happen.
Supporting avast! 4.x is pretty expensive - and it holds back avast! 5 development. So we'll be trying to end the support as soon as possible (meaning - when the new versions of all avast! editions, such as the network/server editions, are available).
So, I'm afraid there's really no point in posting such "requests" here.
And yes, please stop using the caps in titles.