I cannot help you with respect to the new tool, but I can provide you with this link
http://www.geocaching.com/seek/nearest.aspx?State_id=44
which will give you all caches in Texas.
Save it your bookmark file.
As finding all caches around your home coordinates are regarded you have not yet found
try this
http://www.geocaching.com/seek/nearest.aspx?lat=47.065000&lng=15.451667&f=1
but change the coordinates above to your home coordinates lat=....
lng=......
then bookmark it.
It cannot replace the old tool, but it is better than nothing.
I am LOW tech I don't know what save as bookmark means or how to do it. I know you are just trying to help but all that stuff is like a different language Sorry