Missing Guardian and Children

About two years ago I agreed to let my friend have guardianship over my two children so that I may move to another state and get established. I was living in California and now live in Texas. Once I have found a place to live I had called her to let her know where I lived and my phone number and that I was ready to get the children back. In turn she informed me of all these actions I had to go through first, I later found out it was all a lie. A few months go by and I finally got in touch with her again. I once again told her I wished to get my children back, and once again she tried to convince me not to. Since then she has moved numerous times, I have tried to call her on her cell phone which I always get a recording of it either not working or out of area. I have called Mutual Friends and they claim to not know where she is, I have contacted her mom and even she claims to of not seen her. I have been at the same Location in Texas now since 2002, she has my address and Phone number so its not like she cant contact me to at least let me know how my children are or where they are.
I have turned in the paperwork to terminate the guardianship and the courthouse claims they have sent them back for missing information. What that information is I have no clue for I never got the paperwork back from them. The courthouse in California told me to get the original court papers from My friend and I told them how I couldnt even find her cause she keeps moving around. I am at my wits end and worried sick about my children. I am wondering what I should do about it all. She has been using the PO Box address that we had in California when I used to live there with her, so trying to find her online is next to impossible.
I was told by other friends to report her as a kidnapper but I dont know if I should cause she has children of her own to tend to.
What actions should I take to get my children back? Its been about 2 years since I have seen or heard from them.
Any advice will be greatly appreciated. Oh I did find the court case online and she had put herself down as being the childrens maternal aunt even though there is no blood relation between us.
Thank you in advance and sorry if this was rather long.

[Shay-Pari'e]

You gave your children away for how long? Once established you waited longer again to get in touch?

Follow the court orders, I don't think anyone here hunts down guardians.

It was a temporary guardianship. As soon as I moved to Texas I had contacted my friend with all the information as to where I was. She moved about 2 months or so after that, I contacted her through her moms house, luckily she was there. She claimed she got evicted from our old house. After that I lost contact with her personally. I mainly kept in contact through a mutual friend and found out she had moved numerous times since then. I did manage to ask her for the courtpapers once but she claimed to of faxed them to me when it was first completed, which I know for a fact was a lie, I didnt even have a fax number at the time. As it stands now, I have been constantly calling her mothers house and our mutual friend. I have sent her and her mother emails asking them to please reply and at least let me know how the children are doing and where they are.