EP 6 SP9 Support packages

Hi Friends,

I have an EP6/WAS640 with SP9 system on Win 32 intel p4. I want to upgrade it from SP9 to SP15(WAS java 640). For this I have downloaded following files:

J2EERT15_0-10001982.SAR

J2EERTOS15_0-20000118.SAR

CTRLORA15_0-20000118.SAR

SAPINST15_0-10002786.SAR

Are these files correct?

Any help would be highly appreciated

Thanks,

Krishna