I used ncftp and it appears to have downloaded all 4+ gb.If you are running a 32 bit version of RH9 Kernel, you may be running into an OS limit on maximum file size. If you have source, check the disk inode structures filesize variables to see if they are 32 bit values.
Dont know if it applies to RH9 in your case, but you might want to check that possibility before starting another download.
The 4gb limit wont apply to disk structures such as partitions as they are addressed in terms of BLOCKS. your problem sounds like this might be the issue.