Try this version if you would please and let me know if I have got it to install and is working.
It appears to working again; although, I don't have an OWA account to try it with. OWA Webmail Extension (TB5, TB6) Version 0.7.1b1<https://docs.google.com/leaf?id=0B-g4TpKUJnh7M2ViZmYzMWQtMmVjMC00Yjk0LWE0NDYtMGVjNDM2OTc5MDFk&hl=en_US> Eugene
