Hi,
To be able to NAT
65.10.10.1 nat to 192.168.10.1
You should have the following rule:
static (in,out) 65.10.10.1 192.168.10.1
Assuming that the 192.168.10.1 is on the inside and 65.10.10.1 will be translated to the outside.
To permit the incoming traffic, there should be an ACL.
access-list outside permit ip any host 65.10.10.1
access-group outside in interface outside
The above ACL can be modified to permit only the ports needed.
Federico.