If you are not able to un-install them thru' the Applications Manager, most probably they are embedded within the Firmware and you may not be able to remove them.
If i have helped at all a click on the white star below would be nice thanks.
Would have expected them to be installed upon memory card in view of size, but if memory card removed incorrectly rather than stopping via UI = User interface you can lose ability to launch these applications. Suggest that you backup essential data via Nokia Suite then reset device to "Out of box" state by keying in *#7370# followed by 12345 (default Nokia lock code unless altered by user).
Symbian specialist until 31/01/2013 with interests in Maemo & MeeGo but an aversion to Windows!