Trouble getting my php script to work

hi, i made these last few weeks (im in no hurry) an nice news system, CSV file reader and a email forum on my labs server… now there finished i moved them to the server where there need to be but somehow they dont work anymore… my gess is that the paths are not complete… is there a way to read the full path with a php string or is there someone that can think of another problem… ;( ;( ;(