Trim a part of avi, how do subtitles work?

Hello folks,

This is continuation of this thread.

When I convert DVD to XviD using AutoGK, I rip subtitles as well. As I mentioned in the thread before, I prefer to delete the last part of the movie. I wonder in that case, can I still use the same subtitles or I need to edit them. If I need to edit them, how do I do that?

Thanks in advance.

P.S. - If this question needs to go in Subtitle section, please move it there.