You can't put the name of the file inside DataSource, you just need to put folder name, so use this:

Dim con As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Inetpub\vhosts\chowitaliano.com\httpdocs\test\data\;Extended Properties='text;HDR=Yes;FMT=Delimited'")

ore even better, use this (I assumed that your root folder has subfolder test which has subfolder data where your csv file is):

Dim con As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + MapPath("~/test/data") + "';Extended Properties='text;HDR=Yes;FMT=Delimited'")