Simple job posting via php xml

Hi, Need a simple script done up. See www. mlpc .com .sg and click on JOBS ON OFFER. right now they are paying Taleo for hosting the job posting part. They want to stop this. So in the Jobs on offer page, it will show a page with drop down box of job categories, User clicks and it shows all jobs in that category displayed. he/she can then view the job description (each job to have a unique ID which admin will key in), title, salary etc. There will be a link to a form that will allow them to submit their details for the job and upload doc file resume. Admin will receive email of the person with attachment, and also job ID as the subject of the email. On the backend, CMS is not required. They need it very simple, perhaps reading out from an xml or txt file they can add new jobs via notepad. Then save and upload to server and refresh. So each job category will read from 1 text/xml file. That way it'll be easy for the person to update without any knowledge. Pls bid time required and cost. Design of page display to follow format of website style and fonts. Thanks