Thanks for sharing! The last version worked with the free Softimage Mod Tool 7.5, you should leave that version up also for those who don't have or use 2011 or above.
The difference between the v0.91 and v0.91b, just a few line in the loader script to speed up the loading time
This lines temporarily turn off "IceTree circle checking" while loading , this setting only available v2011 and above
below v2011 the loader script will drop some error .... I handle this error and the script is executed normally but no acceleration of the loading phase.
so, if u use older version the difference between 0.91 and 0.91b will be just 3 red ugly error line in the log
... nice new feature for free
so it is just a quick fix to v2011 users ,
I'm planning to revamp lots of parts of the tool , and finally put all parts only one big icecompound ... and forget this model loading hell ...