Sorry, but the development and support of O/T-Track has been discontinued due to lack of time and interest.
However, the latest free version can be downloaded from this site.
Feel free to use it, especially if you are still a member of the Fidonet (tm).
The fact that you found this site makes me guess that you are familiar with Fidonet, Netmail and probably O/T itself. Therefore I abandon the option to explain O/T in detail. More precisely: To explain it at all :-)
Have fun using my free software and please try to keep Fido alive.
Hereby I dedicate O/T to Michael and Sally, who left us much too early.