Ah, from memory, you have to login as 'Admin' user not 'vodafone' user. From the screenshot provided, I can see you are logged in as the 'vodafone' user. Try logging in with details below and see if you then have the option to update the FW.
Username:Admin Please note:The username is case sensitive
Password:"@"and the last eight digits of your modem serial number E.g. if your modem serial number isABC0987654321your password will be@87654321
Modem serial number
The serial number is located at the back of your modem.