Adding an earlier version of a file?

[Andy Jones]

This is a bit bizzarre, but then again, "real" life invariably is.

It looks as if I'm going to have to make a release which includes versions 
of some files which are *earlier* than my initial import of the software 
into CVS.

In hindsight, I'd like this earlier code in CVS, too.  But I'm stuffed, 
aren't I?  There isn't any way I can tell CVS that these are earlier, 
rather than later, versions?