greetings. i have an external harddrive that was once one continuous FAT32 volume at the size of 1TB. through the use of iPartition, Time machine, and drag+drop i now have a 700gb partition with movies, music, software, etc (est 350gb used) a partition for time machine (about 85gb) and a final 25gb partition i wish to install os x 10.5 on, for 'emergency' use to defrag/access my internal harddrive. all of hese partitions are formatted HFS+, journaling enabled, however, when i attempt to install OS X 10.5 onto my 25GB partition aptly named, "RemoteOS", i get an error stating that i must create a partition using a GUID... something or other. i'm aware that this has replaced MBR, and being that the drive was once FAT32 i'm assuming that's what it is. my question is, is it possible to change this without losing data? iPartition seems to show that it is possible... but some of this data isn't something i'd like to lose, and i can't readily replace most of it. thank you!