>My report uses a 'dynamic style condition' for a rectangle and an image. Both work perfectly in development mode. However, in runtime they do not appear to execute.

Are _REPORT* variables correctly populated in runtime? See http://www.berezniker.com/content/pages/visual-foxpro/vfp-90-report-features-runtime for details.

>My report*.apps are the most recent ones (I hope).

The most recent ones would be from SP2. Is that what you are using in development as well?