I fixed the problem

...it did seem to have to do with the files
internal resource fork or whatever it is...this program fixed it:
[url=http://tucows.com/preview/278571]File Properties Editor[/url] ,
if you have a SimCity 2000 city you saved on your PC do the following:
1) Remove the extension, it doesn't do any good on MacOS X
2) Download File Properties Editor
3) Open the program and open your saved game file (if you're worried
about it being corrupted you may want to make a backup copy just in
case although I didn't experience such troubles)
4) Set the type as CITY and the creator as SCDH, then click Apply
Modifications
5) Run SimCity 2000, it should now see your saved game file and you
should be able to open it
