Problems with stills on my timeline (Orange screen of shame)

Question

So, I tried the VSO Image resizer  and found it simple to use.  It seems to be fine, thanks for the
recommendation.   I think Photoshop might provide better control, but  for the purposes of my current project, this VSO Image is convenient.
Using Pre Vers 7
Turns out I  still have a problem with two of the images (jpg format)
1) I  bring them onto the timeline just fine.
2) Then, I save as a clip  ("share" tab) the entire project  (which is approx 3 1/2 minutes)  in  MPEG2 1440x1081i 30 format.
3) I then bring that movie clip onto a  different ---  what will be the final --- project.   I bring on a few  other segments as well  (finished project will run approx 20 mins and  consist of six segments)
Where two of the images are supposed to be shows a  solid, bright orange screen, not the still images.  I've gone back and  checked, the organe screen space is exactly where these two images are  on the original projects ...  they even have transitions (cross  dissolve) into and out of them!
I have tried removing them and replacing  them and changing the transitions, etc.  However, when I re-save   (share) the clip, where these images are still shows up orange.
I've seen  this happen with a couple images on a different project.  Same story   .  .    only a couple images create the issue, and I believe I've  processed all that same  (did batch process to down res)
Thoughts?   Thanks
Chuck

Answer 1

Steve and Bill  - - -
Thanks for the responses.   Here's a bunch more info.  Perhaps too much, but I want to be thorough. 
Info on Project:
Running Prel 7
Set up project in  format  HDV 1080i (video frame size 1440 x 1080)
Content consists of:|
video  (HD captured from tape,  wide screen HD   …..   clips in .m2t format)
stills   (jps  …  see below)
JPGs    History / processing sequence of stills
a) Initial image    ….   4.86M pixels,  1600 x 1062, resolution 72, file size   310K   (downloaded from web)I b) Edited in Lightroom  (white balance, exposure, sharpening, cropping, etc.)   Then saved as highest quality JPG as possible    ….   4.65M pixels,  1565 x 1039, resolution 240, file size   1.3 MB
c) Used VSO image resizer.
Selected the profile entitled HDTV (1080).  Resolution 1920 x 1080. “Filtering” set to “Lanczos”.  Quality 90%.   Result   …   ….   5.03M pixels,  1627 x 1080, resolution 240, file size   516K.
The last image is what I brought onto the timeline.
The initial project prefs did NOT deselect "default scale to frame size".    I simply brought the content into the project and placed them on the timeline.
Everything rendered fine   (all green above timeline).  And when I saved the segment  (share tab, MPEG 1440x1080)) it seemed to process correctly.  Then, I opened the segment (now its own m2t file) and brought it into a new project  (the one I use to assemble the final movie)   I see a problem.  Of perhaps 20 stills, two or three are solid orange.  It’s as if instead of the photograph I have a solid, bright orange screen.  The transitions (typically cross dissolve)  into / out of the orange image work fine.   Just that it’s an orange screen, not the photo.
Note   . . .  I tried a few other things.
*** Deleted the image, re-set preferences to deselect   , brought image back into project   . . .   when processed same orange screen result.
*** Changed the position of the image on the timeline (placed in between different clips/images)  . . . same result.
I checked one of the images that worked fine and saw the following:    4.85 pixels, 1571 x 1080, resolution 240,   file size 276K
System Spec:
Core2 Duo, [email protected], 3GB mem,  NVidia GeForce 8800GT (512 MB), XP Pro
Appreciate any thoughts y'all have
Chuck