Ross,
Are you after a zip copy of WxTide?? If so, I have it on CD. The version you want, with UK tides on it is Wxtide26 - NB, 26 - not 27 that overwrites version 26 and loses all UK tides.
If you go to the site indicated on the message above this one, it will take you to a download of version 27 - I did, and lost all my UK ports tides. So had to uninstall, and reinstall from my backup CD.
The zip file for version 26 is 1.4MB, so if downloaded could take about 10 minutes or so. Let me know by PM if you want me to download it to you.
If you want the previous version, it is only 1.1MB.