Got to the cryptically entitled 'Account>Product Updates' section of this site... ;o)
Oh, and calm down! ;o)
[edit] If you're not already using v1.18 then...
1) Uninstall your current verison of BMax. 2) Delete the BMax folder (Dont skip this step). 3) Install version 1.18. 4) Run the 1.20 updater. 5) Syncmods and restart IDE (not sure if restarting is necessary with the 1.20 IDE) 6) Get the latest version of the BMax IDE here.