Monodevelop gtk incorrect code using custom signals

1:

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.04
DISTRIB_CODENAME=hardy
DISTRIB_DESCRIPTION="Ubuntu hardy (development branch)"

2:
Not sure. The gtk-sharp2 lib is not installed but still working with gtk2# projects in mono

3:
Not sure what package its in

4:
When adding custom signals I expect that the code generated is

this.customwidget.oncustomsignal += new customwidget.customsignaldelegate(this.customwidgetnameoncustomsignal);

where
mainwidget: is the widget containing the customwidget
customwidget: is a custom widget
oncustomsignal: is the event/signal listened to
customsignaldelegate: is the delegate in the custom widget
mainwidget.oncustomsignal: is the listening function

5:

this.customwidget.oncustomsignal += new customwidget/customsignaldelegate(this.customwidgetnameoncustomsignal);

This cannot compile as the type is wrong.