unable to import pubmed references

When  I save the references in PubMed. text file and import the data file to my endnote library, the import group is not created nor the pubmed listing is copied 

I am using an endnote trial version.Isthat the reason?

the filter is pubmed medline. what can be done?

Once you have logged onto PubMed and have found some records you wish to retrieve, click on the “Send to” button, choose File, select Medline as the format and click on “create file.”

This will result in a file called PubMed_Results.txt to be downloaded to your computer. This file can be imported into an EndNote library using the PubMed (NLM) import filter.