South Africa-born batsman Pietersen, 26, could not prevent Ricky Ponting's men regaining the Ashes in emphatic style at the first opportunity after England's 2-1 home success in 2005.
But Pietersen has promised the memory of their recent thrashing will inspire the team to success when the Ashes are next up for grabs, in England, in 2009.
"People are still hurting from the winter. But I don't think it did England too much harm, this winter," Pietersen told BBC Radio Five Live's Sportsweek programme on Sunday.
"Yes, we got hammered in Australia and the World Cup (where England failed to reach the semi-finals) wasn't good for us, but we are hurting.
"Inside, we are hurting and it is the same sort of pain we want to inflict on a lot of countries that tour England, and it is the same pain we want to inflict on the Australians in 2009, so it wasn't all that bad.
"The way we are playing our cricket now is the way we want to play and the way we want to demolish the Australians in 2009."
Hampshire batsman Pietersen added: "I just basically think it's that killer instinct, that ruthlessness that the Australian team showed us in Australia this winter.
"They were at our throats - that's what we want to do, we want to be mentally right, we want to be physically right and we just want to keep asking questions ball after ball, session after session," explained Pietersen, who said new England coach Peter Moores wanted the side to have a hard edge.
"A team has to back down at some stage and that is something Peter is very, very positive about and keen on doing.
"As soon as you turn up at the ground, you are in the right frame of mind, you have got positive energy, positive vibes chucking around the dressing room," Pietersen explained.
"Positive energy breeds positive performances," said the attacking batsman, captained at Hampshire by former Australia leg-spinner Shane Warne.
England have won their first Test series since the Ashes, going 2-0 at home to the West Indies in a four-match contest ahead of the final, ongoing Test here at Riverside.
Pietersen's form has been a key factor in England's success against a struggling West Indies side. He scored a hundred in the first Test at Lord's and followed that up with a Test-best 226 in England's innings win in the second match of the campaign at Headingley.
This series he has so far scored 438 runs at an average of nearly 88 but Pietersen said he hoped for better things to come in international cricket.
"I think this is my 27th Test match, I have played 50-odd one day internationals - I am still pretty young in my career. I have probably got another seven or eight, hopefully another 10, years of playing for England, playing at the highest level.
"It has been a nice start, I have enjoyed it," added Pietersen, who has already scored eight Test hundreds at an average of more than 53. "Nobody goes through their career blasting it all day every single day.
"I am just appreciating the good times at the moment and just concentrating on the simple things.
"The simple things for me are making sure I prepare right and making sure I am mentally tuned in. My life has panned out for me and however it goes from here on in, I don't want to ever wake up on the morning of a Test match thinking I haven't prepared right."