maybe there is something wrong with your connection, try using another internet pc or something or go to
www.foreignaffairs.gov.ie thats the parent site, so u will need to do a bit of surfing to get to the visa. the requirements are very similar to that of a UK visa, so you will need an address of where you will be staying, with supporting evidence e.g hotel booking or invitation from from friend / relative. You will also need proof of funds, yourself and sponsor if applicable, as well as you will need to show that you will return to home country after your holiday. The process is rather long so you will need to apply early. While the form is really only one page, you should try and provide as much information as possible to avoid disappointment, it also seems that they tend to spend more time processing applications from certain countries namely Nigeria, Zimbabwe, Pakistan etc (due to the record of some of these countries on asylum claims) so makesure your application is inorder to avoid dissappointment