The 33-year old striker is being heavily linked with a return to Rangers but insists that he is planning to see out of his contract with the Canadian club.
"I'm contracted to Vancouver until the end of the season," Miller told reporters. "It's as simple as that.
"My focus in the last six weeks has been to get fit and get back on that field and help us produce results, firstly hopefully [next] Wednesday night by winning the [Canadian Championship].
"So that's been my sole aim in the last few weeks. Obviously you can't control what's said or written by other parties, but for me, I've been firmly focused on getting back on the field for Vancouver."