Putting printing files in correct order

With recent versions of PDF Creator (now 1.7.3) I often find that when I drag a group of sequentially numbered files (file01.eps file02.eps etc) into the PDC Creator window in order to combine them into a single pdf file: the files arrive in the window out of sequence and have to be manually reorganized. This used not to happen in earlier versions of PDF Creator such as 0.9.7. Any suggestions?