Instead of clinging on to OSBot 1 you should consider making the switch.
You'll have to move on sooner or later anyways (trust me, your OSB1 scripts won't last for 6 months if they aren't updated :p).
Yes they promised maintenance, but don't expect OSB1 to be even remotely high on their priority list.
Is it just the script prices that are keeping you from making the switch ? Or is there something else ^^?