It seem what the trainer don't work with the latest release of the Skyrim Script Extender (SKSE v 1_04_15 at skse.silverlock.org/).
Could a compatible version of the trainer be expected ?
Try hitting "I" instead of going through the entire process of tabbing and mousing over to inventory. It seems to work that way. I usually hit Num8 while the loading screen is going after I bring up my last save.
I would not wish on them the effort of trying to keep up compatibility with the 8 million mods either. ~grin~
[Edited by vicsrealms, 4/10/2012 11:30:31 AM]