Unfortunately, Vista's built-in partition tool doesn't allow you to merge two partitions together without deleting one of the partitions. Therefore, to merge the partitions using Vista's built-in partition tool, you have to delete one of the partitions so that an unallocated space exist which allows you to extend an existing partition to a desired capacity.
I normally use a program called partition magic when i need to modify anything on my partitions. It is able to resize and move partitions if necessary. You should try to get that somewhere
I'll try that... im not really worried about data loss... if vista goes... oh well i'll install os x on the whole hard drive.