Brand new to the process, not sure of procedures.

[W L]

I would like to preface with a thank you for the patience of anyone who might be reading this.
I am a 1st time buyer, and am interested in a house that will be sold at the public trustee's auction very soon. I am wondering if it will be worth the effort to try to contact the homeowner seeing that the auction is scheduled in 20 days, and the intent to cure must be filed 15 days before the auction. I guess my question is very specific to my state, Co, and I am wondering if the only way to postpone the sale is to file an intent to cure, or if the sale can be continued in another way, so that there could be time to negotiate with the owner. This is all given that the homeowner responds and that there aren't other liens, of course.
Thanks.