(if im reading this correctly) The fact that you transcoded to a format (dv) then ama’d then transcoded again does muddy this up a bit. Typically you would ama then transcode and edit.
You can try to ama to your original clips (mpgs and quicktimes) and try the relink listed below.
If that doesn’t work because of timecode issues, or something else that happened when you made the dv clips, then you can try to relink to your Ama’d dV clips.
If you still have your ama files, then collect them all up, select them in 1 or multiple bins.
In your edit bin, duplicate your timeline, right click on it and select the relink option. From there go to the relink to all selected clips in open bins. Play with the settings a bit. I usually change my name column to the second dropdown choice, rather than the default. Ignore extensions, and turn off match case.
There are tons of posts of this workflow on the cow. Do a search for ama relink or something like that.
For the files that you imported, you can select those and batch reimport. Avid will give you the opportunity to change your import resolution if need be to a higher resolution. (right click on a clip and select batch re import)
Glenn