Miller has scored three times in his last two Scotland appearances

The Wolves forward is out of contract in the summer and has been linked with a return north of the border.

Miller told the Scottish News of the World: "If Hearts and Rangers really are keen, I would consider any offer they made seriously.

"The fact I used to play for Hibs does not really come into it. I've been away from Hibs for a long time."

Miller first burst on to the scene as a teenager with Hibs and his goalscoring exploits prompted Rangers to splash out a �2m transfer fee.

However, he did not manage to secure a regular starting place at Ibrox and left for Wolves in December 2001 for �3m.

"I think every Rangers fan knows I didn't want to leave the club four years ago," added the 25-year-old.

"I am no quitter and I believe I had something to offer Rangers.

"I had scored against Monaco in the Champions League and scored five in a game against St Mirren to equal the SPL record. I was still only 20 and learning at the time.

"But the club offered good money for me and I can understand why they felt they had to accept at the time.

"That's business and there's no way I would ever hold it against Alex McLeish or Rangers.

"At the time, it was made clear that I wasn't going to play regular first-team football and Rangers were good enough to be totally honest and up front with me.

"So I know I could return one day with my head held high and there are certainly no grudges about the way I was treated.

"Alex McLeish gave me a regular game for Hibs and I have the utmost respect for him."

Miller, who has scored three goals in his last two Scotland outings, also had words of praise for Hearts.

He added: "George Burley has done an amazing job at Tynecastle and Hearts could be in the Champions League next season as reigning champions of Scotland.

"My mates have been on the phone to say you can't possibly sign for them.

"But better players than Kenny Miller have managed to play for city rivals and cross the divide in the past."

Sunderland had two bids for Miller rejected by Wolves during the summer and the Molineux club hope to persuade him to stay on.

However, his form for club and country would make it hard for them to hang on to an out-of-contract player if they fail to win promotion this season.