Data extract and lookup

I am building a game fansite, and want to be able to extract character data from the official site, and use that data to look up information in an SQL database that I built. If I view source from the official site, the data (mission data) is contained in 2 sections. I need to maintain the seperation of completed and non completed items. There is an "alt=" tag for each type. I then want to output a simple table with the source data and my data combined. Must be in PHP. An example source page is attached. The key for DB lookup would be "missionName".