PCI compliance not need for buttons but…

Hello – (from the UK)
First of all, thank you for this ‘easy’ PayPal Button Plug-in – appreciated.

It really helps people and tiny businesses, then the larger ones can also happily get the administration PRO version.

Now, regarding the PRO version.

As we know – unless it has changed – one does not need PCI accreditation because PayPal buttons are directly handled by PayPal and there is non involvement with the website were it comes from. Not having a basket and checkout hosted on originating site.

But… if one goes for the PRO version (I do not need it at present, but possibly in the future) it adds PayPal administration etc. and at this point I guess one might be forced to get PCI accreditation, right?
Because we handle people’s data – even thought we do not handle card data.

… or maybe it is only a ICO.org thing (in UK) and not PCI?
Since admin I guess does not deal with Card details?

Regards
M