Hi,
I'm using bitcoin-Qt client with a datadir different from the system default; I've just installed Armory, It is connected but the block number count is stuck at the size of the blockchain in the system default Bitcoin-Qt data directory.
How cain I make Armory read from the updated blockchain?
You can start Armory using the "--satoshi-datadir=/path/to/it" when you start Armory. If it's windows, just right-click the desktop icon for Armory and select properties, then add it to the end of the "Target:" line (with a space between the existing command and this one).