I checked out the error log in Application Manager and this is what it read:

hildon-application-manager 2.0.2
W: Couldn't stat source package list http://catalogue.tableteer.nokia.com ./ Packages (/var/lib/apt/lists/catalogue.tableteer.nokia.com_updates_chinook_._Pa ckages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://catalogue.tableteer.nokia.com chinook/user Packages (/var/lib/apt/lists/catalogue.tableteer.nokia.com_certified_dists_chin ook_user_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://repository.maemo.org chinook/user Packages (/var/lib/apt/lists/repository.maemo.org_dists_chinook_user_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://repository.maemo.org chinook/free Packages (/var/lib/apt/lists/repository.maemo.org_dists_chinook_free_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://repository.maemo.org chinook/non-free Packages (/var/lib/apt/lists/repository.maemo.org_dists_chinook_non-free_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://elkins.org chinook/main Packages (/var/lib/apt/lists/elkins.org_packages_dists_chinook_main_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://www.cobb.uk.net chinook/user Packages (/var/lib/apt/lists/www.cobb.uk.net_apt_dists_chinook_user_binary-armel_Packages) - stat (2 No such file or directory)
W: You may want to run apt-get update to correct these problems
apt-worker[1280]: GLIB CRITICAL ** GLib - g_strsplit_set: assertion `string != NULL' failed
apt-worker[1280]: GLIB CRITICAL ** GLib - g_strsplit_set: assertion `string != NULL' failed
apt-worker[1280]: GLIB CRITICAL ** GLib - g_strsplit_set: assertion `string != NULL' failed
apt-worker[1280]: GLIB CRITICAL ** GLib - g_strsplit_set: assertion `string != NULL' failed
apt-worker[1280]: GLIB CRITICAL ** GLib - g_strsplit_set: assertion `string != NULL' failed
E: Failed to fetch http://catalogue.tableteer.nokia.com..././Release.gpg
E: Failed to fetch http://catalogue.tableteer.nokia.com...ok/Release.gpg
E: Failed to fetch http://repository.maemo.org/dists/chinook/Release.gpg
E: Failed to fetch http://elkins.org/packages/dists/chinook/Release.gpg
E: Failed to fetch http://www.cobb.uk.net/apt/dists/chinook/Release.gpg
W: Couldn't stat source package list http://catalogue.tableteer.nokia.com ./ Packages (/var/lib/apt/lists/catalogue.tableteer.nokia.com_updates_chinook_._Pa ckages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://catalogue.tableteer.nokia.com chinook/user Packages (/var/lib/apt/lists/catalogue.tableteer.nokia.com_certified_dists_chin ook_user_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://catalogue.tableteer.nokia.com chinook/user Packages (/var/lib/apt/lists/catalogue.tableteer.nokia.com_certified_dists_chin ook_user_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://repository.maemo.org chinook/user Packages (/var/lib/apt/lists/repository.maemo.org_dists_chinook_user_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://repository.maemo.org chinook/free Packages (/var/lib/apt/lists/repository.maemo.org_dists_chinook_free_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://repository.maemo.org chinook/non-free Packages (/var/lib/apt/lists/repository.maemo.org_dists_chinook_non-free_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://elkins.org chinook/main Packages (/var/lib/apt/lists/elkins.org_packages_dists_chinook_main_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://www.cobb.uk.net chinook/user Packages (/var/lib/apt/lists/www.cobb.uk.net_apt_dists_chinook_user_binary-armel_Packages) - stat (2 No such file or directory)
W: You may want to run apt-get update to correct these problems

Perhaps a review of what I did. In 'My Selection', I clicked on Skype button. It asks 'Install Skype?'. I click OK.

A dialog then appears 'In order to install software from this source a catalogue must be added. Add catalogue now? Nokia Catalogue.' I click OK. The Application Manager screen starts; the by now infamous 'Downloading 1kb' message appears and that's where it stops. After a while, I cancel. If I 'Browse Installable Apps' in the App. Manager, of course it is empty (no apps available).

I have browsed to the repositories in the log, and in all cases it appears that the 'Release.gpg' file is NOT available. Is this the public key?

This should not be this ridiculously complicated. If I press a button that has been put there inside the OS saying 'Skype', I'd expect it to work!!

Thanks for ANY assistance!