Hi Farrukh
Please ask basis team to check the installation guide once for compatibility ( like 32 bit of office)
BPC 7.5 NW SP 10 is compatible with office 2010 so it should work.
Please refer below few thread to give some more idea :
http://scn.sap.com/thread/2122630
http://scn.sap.com/thread/3260913
I will suggest always work with latest SP package to avoid all this type of issue.
JAck