The only file that looks like it could be video is the VLC file. But .mxf is not a format Premiere Elements can edit.
This is, after all, an $8000 professional camcorder. I wouldn't recommend trying to edit its video with a $75 program. It's not likely to be a happy marriage.
You'd be wise to upgrade to Premiere CS5 -- or, at the very least, Vegas Pro.
I don't know if the forum search is working or not, so go to Google and enter
To read other discussions of the mxf format
MXF is a format that PrPro handles natively, at least as of CS 4.
The VLC reference is a bit limited, but probably comes from the OP having VLC player installed, and set as the default player for MXF files.
Not sure of any MXF conversion programs, but then Canon might offer such a utility on the camera's disc.
I don't know if the forum search is working or not,
I think that it depends on the day of the week, or the phases of the Moon?
Maybe someday, Jive and Adobe will be able to fix Forum Search. In the "good old days," it was OK, to OK+, and then came Jive. About the time that the MOD's finally got things working with Search This Forum query boxes, Search broke and big time.