Robert,
Check out the 'Migrating to 3.0' doc for some tips on upgrading your app:
http://help.arcgis.com/en/webapi/javascript/arcgis/help/jshelp/migration_30.htm
If that doesn't help can you provide a code snippet that shows the problem?
Sure, I actually spoke a hair too soon about the "Type Error: cannot call method 'setRenderer' of null", after I posted my first comment I closed the browser and restarted it and I was no longer receiving that error, so now the map is up and running but I am still getting an error on creating an extent, Uncaught ReferenceError: esri is not defined, it is pointing to this little bit of code :var initExtent = new esri.geometry.Extent({
"xmin":-15654227.28,
"ymin":1644618.94,
"xmax":-6848681.62,
"ymax":7514982.71,
"spatialReference":{
"wkid":102100}
});
I have noticed that if I comment this section out, on the next line of this file I create a symbol object and then I get the same error saying esri is not defined pointing to the symbol object instead, Ill include that code as well just in case it can help var sfs = new esri.symbol.SimpleFillSymbol(
esri.symbol.SimpleFillSymbol.STYLE_SOLID,
new esri.symbol.SimpleLineSymbol(
esri.symbol.SimpleLineSymbol.STYLE_SOLID,
new dojo.Color([0, 0, 0]),
0.5
),
null
);
Thanks in advance.