REGARDING INSTALLATION OF I.S.S. (can't find answer online)

going to buy new 2009 I.S.S. but have this question first after reading  install directions for that product:
 I have Win XP I.E.6, SP2, outlook express, earthlink server, dial-up connection
Before i install i know to go to: top of my screen (while I.E. is launched)Tools/ Internet Options and do all 3 steps:  clear cookies/clear History and 'delete files' ...is there anything else i have to do?  i ask this because on Norton's' '' help with install instruction page''' i see a 'tool' offered to clear ''Windows Temp Files'' but when i go into Windows/Temp via I.E. it is always 'empty' (i always do the above 3 steps frequently)  .but i can't find that feature ..is that the same as what i'm doing in the 3 steps above ?  thank you in advance Edythe