Installing MSSQL 2005 standard

[plaat]

Hello, Ive searched the forums, install manual, admin manual and google but cand find the answer to:

How do I install MSSQL 2005 Standard onto my windows plesk 8.1.

1) Is MSSQL 2005 supported by plesk 8.1?

2) What is the install process for an already setup plesk 8.1?

3) plesk 8.1 has MSSQL already instaled, will installing MSSQL 2005 Standard mess the already installed MSSQL.

4) Whats the difference from the default MSSQL installed with plesk 8.1 and MSSQL 2005 standard.

Thanks for your help