(FROM HERE TO........... "END" BELOW SHOULD HELP WITH YOUR CURRENT DRIVER AS WELL!)
Make sure you select ASIO in the Media window first.
Then in your Media/Audiosettings window choose Asio4all (or your asio driver for your Focusrite if you don't want to use Asio4all) as your soundcard and set the channels (number of channels) that you want to use (total including your computer soundcard). Don't worry if you set too many, as Pd will just drop any that don't actually exist.

Set Pd something like this.......
If you have problems then set the samplerate to match your soundcard, the delay higher (try 30 or more for example and then gradually decrease it to reduce the latency) and try a higher block size although that should not be necessary. Ticking the callbacks box allows Pd to communicate better with the soundcard. Then go back to choosing your soundcard again. The setup you see above gives 2ms latency which is excellent. (END)

Now you should have a little green icon for the asio4all driver in your taskbar (if it is red then there are settings to be changed to make it work).
Click that to open asio4all settings and you should see something like this........ If not then click the "spanner"at the bottom right corner.

Choose which inputs and outputs you want to use, and count down the list of active ins and outs making a note of their order in the list (ins and outs separately). They will be numbered [dac~ 1] etc. in the same order in Pd.

Good luck, and come back here if you are still struggling....
You might find that Pd is still struggling because of your old settings. If so then start Pd with no audio from a batch file using the -noaudio flag, before you do the above........ see below.....
David.
If you don't know how to use a batch file then try this before you start setting up your soundcard. It will reset the sound settings so that Pd responds properly again!! http://forum.pdpatchrepo.info/topic/9250/pd-will-not-start
Or make your own like this.....
It will open Pd and load the directory in which the patch Minx_Run.pd can be found, load the readsf~ directory and then turn off audio, turn on asio, turn off midi and load the patch Minx_Run.pd......

Later, when all of your settings are correct you can have different setups depending upon which soundcards you have connected, like this...........

Try running Pd_fix again.
Then open the Media tab and select ASIO
Then open the audio settings and set:.....
Samplerate 44100
Delay 100ms
Block size 512
Tick to use callbacks
Tick input device 1: and select Asio4all and set Channels: 10 (or more or less... as you like
Tick output device 1: and select Asio4all and set Channels: 10 (or more or less.... as you like
Press the apply button

If you are lucky then Pd will be responding properly and the Asi4all icon will be a green arrow
Open asio4all and see what it says in the panel.
If it is still not working then try a samplerate of 48000
If it is still not working then try to match the Asio buffer size in asio4all to the Block size in Pd.... normally 64 should be good for both, but as you had it working with Reaper at 512 I had suggested that above.
I assume that you should have an output from the Harmon Kardon.... it is not expanded in the screenshot so I cannot see how many inputs and outputs you have. You will need to use [adc~ x] and [dac~ y] where the x and the y are the numbers of the activated inputs and outputs (in Asio4all) that you want to "talk to"...........
Very cool desktop... the best of Bacon!
David.