The first question has to be - have you activated the custom icon plugin (forum admin > Plugins)?
If you have then the default folder should appear in the Storage Locations list and the folder been created.
As to the actual question you asked - it really has three answers:
- If this is a new install of SP then the plugin activation will attempt to create the storage location under wp-content/sp-resources/
- If an upgrade from a previous V4 SP then the folder should already exist under wp-content and will remain there unless you checked the box at the first upgrade to V5 to move existing folders.
- And finally - of course - you can actually move or create the folder wherever you like as long as you match the Storage Location to the physical path.
If you HAVE activated the plugin and it still does not appear in the locations list then that would be a bug. So please do let us know.
Scrap everything I just said. Well some of it anyway. Sorry - it is early here and I have a very busy day so my mind might be wandering! Custom Icons WERE going to be a plugin but we changed our mind. You will find it under the Forums menu list. The folder should have been created by the install under wp-content/sp-resources and there should be an entry in the storage locations.
So - did something go wrong and do we need to address something here? (And again apologies for my confusion)
so if it was in default skin, you probably werent using any anyways??
and sorry, Andy but there is not a custom icon plugin... custom forum icons are still part of core...
in 5.0, by default they should be in wp-content/sp-resources/forum-custom-icons
we dont automatically change that location on an upgrade because there is no telling where users may have located at and what might be in there...
and as I said, in your case, you probably werent using it anyways, so no issue with the location not validating...
the upgrade should create the location that I said above though... so you should just be able to change it to that...