http://e-vertise.com/warpzilla/fx-wps-v1b.zip
(if you have the first test version, you can just get this fix).
http://e-vertise.com/warpzilla/fx-wps-v1a-fix.zip
The icons displayed in the Download and Helper Apps dialogs will match the ones you'd see if the file were in a WPS folder. The Download dialog will always let you open any file (except an exe) in a helper app; in most cases, it will offer the WPS default.
Source: OS/2 Warp News and Rumors