I am running PM 4.5.4 on Mac OSX 6.
I have installed PM on the new laptop ( old one died) but is there a way to transfer all my stored data in fields such as keywords, city, etc?
In the individual images? Just copy them over.
The actual lists of keywords and cities? You can export them individually to files and copy them to the other machine and import them individually. If you had PM 4.6 then you could use the Preferences dialog's Export button and export your settings to a file, followed by copying that file to the new system and use the Preferences dialog's Import button to import your settings file. This is far easier than the 4.5.x method.
HTH,
-Kirk
P.S. Version 4.5.4 is known to have serious issues when running on Mac OS X 10.6.x Only recent versions (4.6.x) of Photo Mechanic work properly with Mac OS X 10.6.x. Depending on when you purchased Photo Mechanic you may be entitled to a free upgrade. To check for eligibility use the 'Software Update...' command on the Photo Mechanic application menu.