need a little help with a piece of php

[stormgod]

here is the script , its supposed to draw a show EQ map in a 640/480 Max box, but actually my resizing/scaling of thempa dont seem to work for many maps , they are sometimes almost perfectly drawn but sometime you can see only half of the map

halp maps are : everfrost , arena for exemple
almost full maps : gfaydark ,lakeofillomen

script require some time to run on big maps , for me lakeofillomen need more than the 30 seconds limit , (its the only one I have encountered like that right now )

any help appreciated ( its for an add on to the php legend script )