Problem reindexing LBA table!

[n1239]

Hi,

The game i am trying to rip is Xenosaga I. the problem i am having is with Reindexing LBA table. I have Hexworkshop and HEx editor but don't know how to use them propperly. Can you please explain to me how to reindex LBA given the following:
Offset (New LBA value)
3CF 030000
3DF FCCD00
B04 3D9F01
I opened the file that required changes with HexEditor and found that the (New LBA value) is 6 digits and not 2 so when changing it for example 3CF has the original value 03 and therefore chaning it with 030000 will displace the rest of the numbers in the table! Is this correct if not can you please give me the steps of how to change to the new LBA values of one file, that is if its not too much to ask for?

Thanks.