How can I stop Acrobat from reordering files when importing files to create a PDF?

To all those more knowledgable than I,

I am converting a larger amount of tiff files into one PDF. The TIFF files are numbered 1-100. When I "add files" in the diaologe window they reorder because Acrobat does not look at the third number so then I have to move up and move down the file names so that they are in a sequential order. Is there a way to have Acrobat not do this?!

Thank you.