If you are on a PC...go in and see if you can still "uninstall" the program. if Yes, then try to isntall again. If same problem.... then your problem is deleting the Tyre program without uninstalling... left parts of the program still in the registry....preventing you from re-installing.
This is usually the problem.
Find and download CCleaner. "Crap" Cleaner is a free program that helps clean out left over program material from an uninstall or a delete. And it helps clean the registry. When you download it, if given a choice, only download from the Piriform website. And do not allow the download to install any toobars. They won't hurt you but are not needed.
When you run trhe program, you will first "analyze", then, "Run Cleaner". When that's done,
choose the 2nd tab down on left... under the "Cleaner" tab...is "Registry" tab. Choose that.
"Scan for issues" (the registery), then have it "fix" whatever it found.. after you let it backup the registry.
BTW, please let it run with it's own defaults. It has never hurt any data I've wanted to keep...just press the buttons I suggested to get it to do it's own thing...
When done with these two things, close CCleaner and try and download and install the latest version of Tyre. Hopefully that will cure your issues. If not, then the program people who hopefully will respond tomorrow will tell you how to manually clean up the deletion.
You may have to reboot the computer if this initial CCleaner clean out doesn't work. I've never had to, but that is a common thing to do to help clean out junk in memory (for example).
Hope this helps...
david