Yeah there is a LOT to Opera its probably taken me years to find and then actually remember all this stuff! Worrying really...
If you still have both Opera's installed open 9.23 (Because i know this works) and type this in the url bar opera:config these are all the detailed preferences you can't normally change as well as the ones you normally can but in a difficult to use interface

quick search inline and turn on inline find, resart opera and then try ctrl + f it's a much better way of searching, like "." and "," but its what i'm used to!
Also if you want to read some stuff about the new Opera, this guy's
Blog isn't bad either...
//Edit: I'm a fool just checked it on my Old 9.23 install its "use integrated search" opera:config#Use Integrated Search copy that in enable it then restart, then try ctrl + f. Its not actually inline find thats "." and "," this is opera integrated search varies slightly..
//Edit2: OK so integrated search works (without resart woo!) on kestrel, but the Wand problem is a
known bug it seems, well at least other people are also experiencing it on other platforms too.