Another route to getting Mapsource

 

Pun intended. Here's a link to a procedure that may let you install the Mapsource update:
http://freegeographytools.com/2007/garmin-mapsource-for-free

It only involves downloading and installing files that Garmin makes available for free. I have not tried it (in my case, a modification to the registry convinced the update file that it should install), so I can't promise it works. But it doesn't look like it could do any harm.
wink

--
"Recalculating... drive 0.2 miles, then abandon vehicle." ------------- [ETrex Venture CX; Nüvi 40]

It worked for me. I now have

It worked for me. I now have POI's on my c330. smile