Is version 1.0.1.0 the correct version of the wallet to be using?
Yes it is. Dev said he is working on new wallet that shows correct time till you get a stake. But staking does work just remember your coins have to be at least 5 days old (sat in your wallet with it closed or locked for 5 days) before you will start getting rewards.
It doesn't have to be 5 days, 1 day is enough. But older the coins are, the bigger is chance to generate stake.
staking weights shown in new wallet's tray don't change for hours while the wallet is running,
and only (and always) change if i relaunch the wallet.
is it normal ?
Yes, I know about it. There will be wallet update this week which should fix it.