Lois is transported into her high-school self. I don't remember but I think it was Tempus that did it. Meanwhile her younger self finds herself married to Clark. Older Lois takes her VW to Kansas to meet up with young Clark. Things are more confusing when Lois bounces back and forth into her proper timelines.

I'm sure it isn't:

• Unanswered Prayers
• Home:Circle of Fate

Thanks all!

Urgh! I read this one but did not keep it on my harddrive!

Could it be Time and Again by Shayne Terry?

A single (unmarried) Lois is transported to the past by Dr. Klein to save the world from an asteroid called Shiva. She has to change the past to save Superman from the kryptonite cage, so he can save the world. She wants to also save Clark who died around the same time as Superman. Instead of being transported to the Daily Planet, she ends up in high school and takes that trip to Smallville in the VW. She bounces around in time.

Bingo! That's it. Thank you! I'm looking forward to reading it again.