Cannot find computers

I've been trying to test Sophos to protect a small workgroup just to get an idea of it.

After installing the Enterprise console I attempted to do a search for computers, non of the search tools (IP address or Network) to find computers on the network work, Both return error messages about lack of privilidges etc.

Avoiding this I decided to import them from a text file, however when attempting to protect said computers, I received this error:

Unspecified error

----- [outer exception] -----
   -- error: 0x80004005 (Unspecified error)
   -- facility: Generic (System)

   at 2
   at 1
   at bool __thiscall CRemInstAction::InstallCALL(class std::map<class bl::Computer,struct RemoteInstallComputerSummary,struct std::less<class bl::Computer>,class std::allocator<struct std::pair<class bl::Computer const ,struct RemoteInstallComputerSummary> > >,struct EMLibHandler::ProductOptions,class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> >,class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> >)
   at bool __thiscall CRemInstAction::InitInstallForComputersUsingSum(class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> >,class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> >)
   at bool __thiscall CRemInstAction::InitInstall(class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> >,class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> >)
   at int __thiscall CRemInstCredentialsDlg::OnWizardFinish(void)
   at void __thiscall CMainFrame::LaunchProtectComputerWizard(const class bl::UIPermissions &,const class bl::ComputerList &)
   at void __thiscall CGroupTreeCtrl::OnDrop(const class CPoint &)
   at int __cdecl Run(int,enum bl::ConsoleType::Type)
   at int __stdcall wWinMain(struct HINSTANCE__ *,struct HINSTANCE__ *,wchar_t *,int)

Followed by enterprise console closing itself. Can anyone point me in the right direction?

I'm using Enterprise Console 4.5 on Windows Server 2008.

Thanks.