No. You can be sure that if she had, the Democrats would have made sure they got out during the 2008 Presidential campaign.
Yes Vanessa has posed naked heaps of times
No.
No.
no
no
No
no
Yes.
yes
yes
No, she has not posed naked. She has been seen in Bikini however. She was seen in Dhoom series wearing a Bikini.
No, according to her, she did 'bikini stuff', but never posed nude