Your must pay, Go
Here
There are four payments possible for a Signature use
1)
Signature Donation
$1.66 per month
2)
Private Message and Signature Donation
$2.50 per month.
3)
Mega Donation
$7.91 per month
4)
Lifetime Mega Donation
30 Years $249.00
But, early members got them free then at I think 5000 members they made people pay.