Hello Bernhard,
TI has an updated version of UltraLibrarian Free Reader (version 5.3.409) which I used to translate the TMS320C648_ZWT_361.bxl to Altium version 10.890.23450. The exported files are included for your convenience:
(Please visit the site to view this file)
I will let you know when the updated version of the new UltraLibrarian Free Reader is available on ti.com for download.
Regards,
Janet