upgt-firmware-2.13.1.0.tar.gz is the port, and
upgt-fw-2.13.1.0.tar.gz is the distfile for the port (i.e. the source).
utgp(4) lists the following URL on FreeBSD 9.0-RELEASE:
http://weongyo.org/project/upgt/upgt-firmware-2.13.1.0.tar.gz
The manapage incorrectly says this is a package to be added with pkg_add, this is not true, this is a port, so you'll need to extract & build it, which seems to work fine for me.
Code:
[~]# fetch http://weongyo.org/project/upgt/upgt-firmware-2.13.1.0.tar.gz
upgt-firmware-2.13.1.0.tar.gz 100% of 1345 B 2128 kBps
[~]# tar xf upgt-firmware-2.13.1.0.tar.gz
[~]# cd upgt-firmware-2.13.1.0/
[~/upgt-firmware-2.13.1.0]# make
===> Vulnerability check disabled, database not found
===> License check disabled, port has not defined LICENSE
===> Extracting for upgt-firmware-kmod-2.13.1.0_1
=> SHA256 Checksum OK for upgt-fw-2.13.1.0.tar.gz.
===> Patching for upgt-firmware-kmod-2.13.1.0_1
===> Configuring for upgt-firmware-kmod-2.13.1.0_1
===> Building for upgt-firmware-kmod-2.13.1.0_1
[...output snipped...]
[~/upgt-firmware-2.13.1.0]#