Transparency Issues with PSD files in FCP 7

Question

I'm having some weird file layer transparency issues with FCP 7. I'm working on a project that's made up entirely of graphics drawn in Photoshop CS5. They Photoshop settings were done to match an HDTV 1080i (16:9) sequence in FCP. In FCP, the pixels were set to square, field dominance to none, frame rate to 29.97 and compressor is Apple ProRes 422.
I exported my PSD files out of Photoshop, with each layer being exported to its own file. In general, things were fine, but there were a few files where you could see the outline of the character against the background, but mind you that this is only visible once the video is rendered out in the FCP timeline. Nothing is visible in Photoshop, nor is it visible while viewing from the Browser in FCP. I told this to the artist and he went back and made corrections, making sure everything was on a transparent background, but the result was still the same - once I rendered the graphics out in FCP, these edge lines were visible.
I then went back into Photoshop, opened all the files that were giving me trouble, clicked on the "foreground color" and changed it to a color other than white, then back to white and hit ok. That seemed to work - even when rendered out, I was getting no artifacts, until I tried enlarging the graphics over 100%.
Also, with some of the same graphics, I was trying to layer them so that a guy was in the foreground with other people and a van behind him in the background. Once again, no problem in Photoshop, but once brought into FCP, the background people were actually being displayed over the main foreground character.
I'm pretty baffled - what to do? I'll attach a photo of the weird lines around the characters. It might be hard to see at this size, but if you download and enlarge it to 300% or so, you'll see what I mean.

Answer 1

Just saw that Adam's original post was an older one.  Will keep this here anyway to maybe help the most recent poster.
Sharon
Adam, did you try what David said about pointing to the root folder?  Did that work?
When I copy the SD card, I name a new folder on my hard drive something specific, like Smith Wedding.  Then I copy everything inside the SD card to that new folder.  The first level inside my new folder now has folders for
AVF_INFO
PRIVATE
and on down from there.  When you open Log and Transfer, point it to the Smith Wedding folder (of course whatever you have named yours).
ClipWrap2 also works great to convert the files beforehand if you want.
What camera are you using?  I have the Sony NX30 and it was giving me fits because the .mts files don't ingest if the clips are longer than 11 min. My problem is that I'm still on FCP 6.0.6.  I think 7.0.3 fixed that.  But I did find enough work-arounds to keep the camera. 
This is a link to the full discussion if you are interested.
https://discussions.apple.com/message/19085158#19085158
Sharon
Message was edited by: SSteele