I have a website which handles online auctions, site is ready and working fine but i have some issues in it. If you are good in CORE PHP so it wont be a big problem for you to solve these problems. As this jobs hourly price is $1 per hour so it would be counted in total how many hours you take for one job.
If you really want to take this job and did not applied for it randomly so write at the top of your application that "I am ready to do it in $1/hour " so that i will be sure that you have read the job description carefully and set your mind to work on this.
Hope to work with you asap.