Do you mean Hal crashes when you click on the create account or the setup account buttons on the webhal options? can you place a check mark in the box to activate it? Are you running a internationl version of windows?
Maybe you might be able to register at the site and then just put in the information in the open slots. If you still cant do it that way back up your brain file and try to use the repair option in the setup file from the zip file. If that that dont work try to unistall and then reinstall Hal to see if it fixes the bug. Are you using the free version or paid for. If its the free and you got it from the site then it may have been corupted in the download, you may need to redownload it and reinstall Hal again.
I hope this helps in some way.
