NIS Engine For NIS 2010 Cannot be updated

hi, i have just installed NIS 2010 , i am using win xp . i keep geting this error when i run the liveupdate

 

 

< NIS Engine >

< Norton 2010 Product Update > 

< State: Fail to complete >

< update Criticality: Recommended >

 

i try all the step in the tech-support. it still dun the error.

 

can anyone please help me thx.