Unless the freehand shape is an option, the function has not evolved well.
**In previous versions, the portion of the image outside of the wrap points was not visible.**This is a function I use daily and will have to find an alternative now.
With your post I was able to understand more clearly what Annette was experiencing and I was able to reproduce it myself.
It appears that this 'freehand' cropping of pictures approach using the tight wrap and editing the wrap points has been removed in Publisher 2013. You can 'crop to shape' which is new, and while there are a lot of shapes available there does not appear to
be any 'freehand' shapes as a choice.
You can also insert a 'shape' and use the 'freehand' option under lines to create any shape and then fill that shape with your picture. You can edit the freehand shape points to do something similar to what you did before.
So while some new functionality has been introduced, it appears that MS 'broke' the old way of doing this. I would consider this a bug and would hope that it would be fixed, but you should probably find a workaround and not wait.
In the meantime you might also report this as a bug and/or offer feedback. There isn't a specific site for Office 2013 feedback yet...that I can find, but here are a couple links that might help.
Feedback for Microsoft Office 2010
http://mymfe.microsoft.com/Office/Feedback.aspx?formID=375
Report a Microsoft Product Bug
http://support.microsoft.com/gp/contactbug/en-us
DavidF