The message you're getting means you've successfully saved the patch to the sd card.
You can then use the patch load object with a string to load this patch. It's confusing at first...
I use a similar approach to what gavin said a couple of posts before. Works well.
I'll try and post the patches I use at some point.
Basically, I have an 'innit' patch which loads as the start up patch on my axolotis. This has patch load objects that load patches saved on the sdcard, plus midi thru and audio thru setups.
Then every patch I use has a couple of objects that respond to a midi note that re load the innit patch so I can then load another patch from it.