You must assign the IP's to yourself (your Reseller). So go to Admin Panel -> IP Manager -> Select the IPs, select your username at the bottom, and click "Assign To".
I created account using directadmin but I can not access the domain until now, also I changed DNS for the domain from enom and I add DNS zon from my directadmin so I want to know why I can not access the account by it domain ??
Perhaps if you could provide some information on which domain isn't working, debugging would be easier
Also, have a look at www.dnsreport.com as it will give you all the information you'd ever want to know about your dns setup. Remember that dns propogation can take upto a few days (At worst).