[BRLTTY] question about brltty and ubuntu 12.04

[Velegi István]

Hi All,

I am running a ubuntu 12.04 x64 with a focus 40 usb braille display. 
Currently I have brltty 4.3 rev 5477 installed.

Is there a newer version which supports braille input and can be 
compiled and installed on this distro?

If my version is the latest awaylable build, can the rockers be set to 
up and downarrow commands like in Windows at Jaws?
Can I set dot7 to "backspace" and dot8 to "enter" key?

Thanks in advance.

Greetings,
Istvan