An Trinh wrote:I got the TTX file and original file only. Do I need some TM files?
Not if you just want to save as target. The problem must be somewhere else. Problems in saving TTX files as target are fairly common, and there's quite a number of reasons why it might not work.
Did I miss some other steps?
Maybe. You certainly missed some steps in posting this request for assistance, such as the Trados version number and the exact error message you are getting. Help us help you, OK?