I was about to purchase Jomsocial but after submitting credit card info I was told:

The value (my CCV number) is invalid according to its datatype string.

Hi Eric.

I'll pass this question to our billing specialist Ricardo, and I'm sure he'll reply as soon it's possible.

I managed to purchase via Palpal. It took four attempts because after pal pal I was redirected back to the page where I was told about the invalid CCV number.

Anyway I have managed to install the extension on mty Joomla 3.2.3 site.
The only problem now is that in my Opera browser I can't seem to add photos to my profile nor can I change or modify my profile cover. Everything else seems to work fine

I succeeded in uploading pics and changing my cover in Chrome. It was only in Opera that I could not do that.