Install dep.sisx first then the client. After that you can install Windows Live Spaces plugin (optional).

Download OS 9.1 for N73, N80 etc
Download OS 9.2 for N95 etc

DOWNLOAD:
dep for os 9.1.zip
ShareOnline_MSN_Localised_S6030 for os 9.1.zip
WindowsLive_S60_3_0_v_1_0_8161_signed for os 9.1.zip
dep for os 9.2.zip
ShareOnline_MSN_Localised_S6031 for os 9.2.zip
WindowsLive_S60_3_1_v_1_1_8161_signed for os 9.2.zip