Sophos 7.1.1 and OS X Yosemite PB2

Hi

I've just installed yosemite PB2 but I am unable to install Sophos on it. I have a 7.1.1 version which works fine under Mavericks but is not working on Yosemite. It stops after a few mins saying that Sophos Antivirus is not running. Also, update menu is greyed out plus it is generating a lot of errors in the console. 

Errors

16/09/2014 08:10:08.196 com.apple.xpc.launchd[1]: (com.sophos.autoupdate[1731]) Service exited due to signal: Trace/BPT trap: 5

16/09/2014 08:10:08.205 ReportCrash[1737]: Saved crash report for SophosAutoUpdate[1731] version ??? to /Library/Logs/DiagnosticReports/SophosAutoUpdate_2014-09-16-081008_My-MacBook-Air.crash

16/09/2014 08:10:08.196 com.apple.xpc.launchd[1]: (com.sophos.autoupdate) Service only ran for 0 seconds. Pushing respawn out by 10 seconds.

16/09/2014 08:10:08.209 ReportCrash[1737]: Saved crash report for SophosAntiVirus[1730] version ??? to /Library/Logs/DiagnosticReports/SophosAntiVirus_2014-09-16-081008_My-MacBook-Air.crash

Crash Report

Process:               SophosAutoUpdate [1731]

Path:                  /Library/Sophos Anti-Virus/SophosAutoUpdate.app/Contents/MacOS/SophosAutoUpdate

Identifier:            SophosAutoUpdate

Version:               ???

Code Type:             X86 (Native)

Parent Process:        launchd [1]

Responsible:           SophosAutoUpdate [1731]

User ID:               0

Date/Time:             2014-09-16 08:10:08.128 +0500

OS Version:            Mac OS X 10.10 (14A329r)

Report Version:        11

Anonymous UUID:        BC506948-ABBB-17F4-63EC-04083B4024EF

Sleep/Wake UUID:       5B16C69B-1981-43B3-997B-07E9F2D2354D

Time Awake Since Boot: 2100 seconds

Time Since Wake:       3 seconds

Crashed Thread:        0

Exception Type:        EXC_BREAKPOINT (SIGTRAP)

Exception Codes:       0x0000000000000002, 0x0000000000000000

Application Specific Information:

dyld: launch, loading dependent libraries

Dyld Error Message:

  Library not loaded: /System/Library/Frameworks/AppleShareClientCore.framework/Versions/A/AppleShareClientCore

  Referenced from: /Library/Sophos Anti-Virus/SophosAutoUpdate.app/Contents/MacOS/SophosAutoUpdate

  Reason: image not found

Binary Images:

0x8fe33000 - 0x8fe66e03  dyld (353.2.1) <EBFF7998-58E8-32F5-BF0D-9690278EC792> /usr/lib/dyld

Apple says they have removed the AppleShareClientCore framework.

(https://developer.apple.com/library/prerelease/mac/releasenotes/MacOSX/WhatsNewInOSX/Articles/MacOSX10_10.html)

Does anyone know how to resolve this?

cheers,

AM