"We just went into panic mode because we knew it was not like Susie to disappear," said Mary Lyall.

Her parents, Doug and Mary Lyall, are still keeping hope alive. And state police continue to track every lead.

Chief Investigator Dave Madden said, "We've gotten calls from all over the world as far as this case goes. We pursue them all and we'll follow them as far as we can."

Doug and Mary Lyall said the seven years since Suzanne's disappearance have been terribly painful. Each day they wake up hoping to get the call saying she's OK.

"We try to keep her disappearance out in a public view, but beyond that its a lot of sitting and waiting," said Doug Lyall.

Doug Lyall said among the new leads is a recent e-mail indicating Suzanne may have been harmed by someone she knew.

"We're looking at Susie maybe going with someone that she knew well, or knew well enough to trust, and having that relationship go bad," said Doug Lyall.

In addition to working closely with police, the Lyalls have established the Center for Hope, and they've completed a design for a memorial remembering Suzanne and the hundreds of others like her.

"Yesterday Doug said, "What do you want for your birthday?" and I said I want my daughter back, so that's our hope," said Mary Lyall.

The Lyalls said they even have a new investigation team working on the case. They said it's a fresh group of detectives they hope can crack the case.