I've had a bit more uck that you.
I'm not sure about the first error - but I think you are misinterpreting the seond error. I think Eagle creates the scr file as an intermediate script file while doing the import.
In my case - I had some permissions problems while Eagle tried to generate the "scr" file.
You can either change the folder where it writes the scr file - or run eagle "as administrator" in windows 7 so it breates the scr file without problems.
I really don't know what caused your first error. I didn;t see that.
I found this section helpful:
Though I think the "ulp" is now included in V6.4.