Same, same I've been trying to download GPE Suite and/or Summary from this link;
http://www.cobb.uk.net/NokiaIT/index.html#gpe .
My N900 pops up the following message;
"Unable to download 'gpesummary'
Application package not found

However I could install separate files as listed hereunder, but the widget is "empty" not running and plain b/w if you close the app.

• Calendar
• ToDo
• Contacts