Please help - Can't get to work with hotmail

[JD]

I have been trying for hours but I can't get it work with hotmail.
When I click the sync button nothing happens.
The error console has this message
tzpush error : [Exception... "Component does not have requested interface" nsresult: "0x80004002 (NS_NOINTERFACE)" location: "JS frame :: chrome://tzpush/content/send.js :: Send :: line 257" data: no]

Any idea what is wrong

Thanks

JD