Dave Bouwman writes about how ArcGIS 9.2 ADF does not support curves. We’ve actually bumped into this issue a long time ago, resorting into converting the curves to a series of points (as Dave suggests).
This is but another huge issue with the ADF. As I’ve said before, this is one horrific development platform. I’ve started to seriously think about coding a replacement that will work against ArcObjects (at least something that will satisfy my team’s needs), but it would take a lot of time which we currently do not posses. One day, though, one day.