Depending on when that 0.1.0-pre build was done, the savegames it creates MIGHT not be compatible with 0.1.1.
I'm curious though, as we haven't hosted 0.1.0-pre in atleast a year now, so when did you download 0.1.0-pre?
As for getting your game back to where you were, there is a solution to that, cheat-codes:
* Close ResidualVM
* Open ResidualVM Preferences (it's a file in ~/Library/Preferences, where ~ is your home-folder)
* Under the bracketed entry that starts with grim (i.e. [grim-win]), add:
* Save the file.
* Open ResidualVM
* Start Grim Fandango.
* Press J, then enter the jump-point you want to jump to.
A list of jump-points is available at the bottom of this page:
http://wiki.residualvm.org/index.php/Gr ... Debug_Mode
(Note: Jumping to sets, as described in that page, is just moving Manny to a specific set, whilst jump-points puts you at a specific point in the story, complete with the inventory items you're supposed to have from earlier parts you can't backtrack to.)