Demo Instalation

Dear sirs.
Im try install your software but when I try run doesn't work. When star server run Discussion... Close up.
Then try install SP3, and tell me error install.
Im install Zoho SP 3.0.0 but I can install Advantnet 3.0.1 and I18.
How can resolve this problem and test your soft?
Other error show me cant acces to mysqld-nt.
Im try re install (after uninstall) and show me same errors.
Best regards
Juan C.