Please upgrade to 2.3 here.
The 2.2 and earlier branches are no longer being updated.
Facebook Connect Doest work when user has space in his name
I was testing Facebook connect on my new forum http://gtricks.com/forum/
and I must say guys at Vanilla has done awesome work.
But I have noticed that a user cannot login if he supplies profile name with spaces. The only error message shown is "user name must be of 3-20 characters"@tim @digibomb
please see/verify this issue.
Vanilla is sweet & support is great, to encourage volunteers, please donate.