Hi,
The Resize mode for the ChildWindow is available in the "Plus" version of the toolkit : http://wpftoolkit.com/.
v2.1 of the Toolkit is already available in the "Plus" version while the "OpenSource" version is still at v2.0.
As for the Close Button in the ChildWindow disappearing when childWindow is not focused, it is fixed in v2.1.
The Resize mode for the ChildWindow is available in the "Plus" version of the toolkit : http://wpftoolkit.com/.
v2.1 of the Toolkit is already available in the "Plus" version while the "OpenSource" version is still at v2.0.
As for the Close Button in the ChildWindow disappearing when childWindow is not focused, it is fixed in v2.1.