This error happened when the short_open_tag php.ini directive was set to off. It is fixed in version 0.10 of the plugin.
Only noticed this post today, sorry about that. I’m checking the comments on our blog more frequently.
I realize there were some problems with the determination of the blog path in some versions of ezMigrate, which could lead to broken css in the backend. I experienced those problems myself. These problems are now resolved, so if you still need ezMigrate, you could try the most recent version.
Onno Marsman (developer of ezMigrate)