There are new versions for both BitDefender and F-prot and they point to a different download url now.
I have adapted these URLs on my webserver.
The new F-prot seems to work ok.
The new Bitdefender has install problems because the install path has changed and tries to install itself to /usr (which is read-only on CD in TRK). Luckilly, the old Bitdefender is still available, just the download path has changed. So that one works too.
If it hadn’t, I had to release a new version of TRK and people had to upgrade (i.e. download and burn new CD)
Now, you will just receive a warning that the download URLs have changed but it will still work (just answer ‘y’).
AVG, Clam (although reported out-of-date for the engine) and Vexira still seemed to work.