Open Question: Urgent Help in filling in job application form for tomorrow !!?

hiya i have got a job application for a very important job that i need to get an interview for, but i am not very good with answering the hard questions!! good in interviews but not on paper !!! The job is for an administrator I am currently working as an administrator for the nhs but it is only temporary so i need to get this permanent job!! The Question is please detail here your specific reasons for this application, your main acheievements and the strengths you bring to this post ?? well my main acheievements are NVQ Level 2 and 3 in Business Administration and an NVQ Level 2 in Accountancy i am really struggling with how to word the other parts of the question please can anyone help ? many thanks xx