If you have an older version of Wordfast lying around, but are sent a link to a new gltm (global TM), you likely found out that the format of the link is invalid in the older Wordfast version. The gltm link format is as follows:
gltm://username:password@url:portnumber/
You can easily render this link such that it’s compatible with an older Wordfast version, which has the following format:
wf://username:password@url:portnumber/
In other words, just replace the gltm by wf and you’re all set.