Yes, the 30/10/3006 build had issues. vtiger had done a lot of work in the past on the migration front but somehow it reached a peak of fiasco in that build. So I guess, you were upset.
This time around, we have been focussing a lot on the migration and also on the migrated build.
As earlier, the UI is embedded within the product and we have made some additional fixes in it as well.
We have tried to cover as many loopholes as possible this time.
As ever, things are perfect in a developer environment. I am myself keeping my fingers crossed as to how things go when it goes live into the market.