since Thursday, there are some network problem with ManaGames' host, and it seems it leads to corrupted download. Thus when you try to install the game, you get this message :
The installer you are trying to use is corrupted or incomplete. This could be the result of a damaged disk, a failed download, or a virus. You may want to contact the author of this installer to obtain a new copy
It may be possible to skip this check using the /NCRC command line switch (NOT RECOMMENDED)"
In such case, you should try to download the game again, but turn off any download accelerator you may have.
Also, be sure to not redownloaded a cached version. To help to bypass any cache you may have (either local in your browser, or at ur ISP level), here some alternative URLs, which may help a bit :
TE2009 : http://www.managames.com/download.php?T ... oCache.exe
(correct file size = 19.4 MB)
TEM : http://www.managames.com/download.php?T ... oCache.exe
(correct file size = 11.5 MB)