Checksum failure with ncbi_tools

Hi, I've been trying to install ncbi_tools and get a checksum error, namely Error: Checksum (md5) mismatch for ncbi.tar.gz Error: Target org.macports.checksum returned: Unable to verify file checksums Error: Status 1 encountered during processing. I've manually downloaded the file by FTP from the source site (ftp://ftp.ncbi.nlm.nih.gov/toolbox/ncbi_tools/) and it downloads and expands fine, without corruption, and it apparently hasn't been altered in about five years, so I'm assuming there's some problem on the macports side rather than it being a corrupted file or a stealth update. Is there a way I can force the installer to use the expanded archive I downloaded myself and skip the checksum? Thanks, - Chris Doucette