How do I access access and submit the Nigeria Customs Vacancy? Pls help

Guday fellow users, pls I'm in need of help. I have tried without success to submit the Nigerian Customs Service job openings. When I follow the Link given on naijahotjobs, a form is displayed which I fill but the form refuses to submit when i click on the submit botton. i have also visited the website of the Nigeria Customs but it says that there are no vacancies. Pls help I dont know what to do. Thanks

The last time i actually tried to apply,the site was under construction.i ll see what i can do.