You may download the demo right here. You may also download the Bp Bomb Seeker for Windows Free Demo from these sites. Choose one that is closest to you.
Mirror sites are occasionally busy or unreliable.
If one site is busy please try another. Programs written in visual basic need to access a runtime library called a dll. Most computers already have vbrun300.dll so to keep the demo download size down it is not included in the bombdemo.zip file. As you probably already know or have noticed, most files for download have an extension of '.zip'. The files have been compressed or made smaller so they can travel faster accross a connection to speed up download time.