I tried to export and found that my "UploadMe" preset had vanished.
So I struggled through the new dialog and managed to Import settings from C:\Documents and Settings\paul\Application Data\Adobe\Lightroom\Export Presets
Settings are actually being loaded from D:\Lightroom\test\Lightroom Settings\Export Presets\User Presets
Then I thought of checking the preferences to see why Lightroom had ignored all my previous settings from 1.2 and instead gone to the folder where the database is !
So I checked under Edit | Preferences and found a checkbox [X] Store presets with catalog.
Well I know I hadn't set that because it wasn't loading my presets.
Not only that but when I clicked on the (Show Lightroom Presets Folder) button it went to C:\Documents and Settings\paul\Application Data\Adobe which is where I expected the settings to be !
I don't know how the checkbox got set but if it's a default setting that comes with 1.3 - it bit my ass good and proper.