460300 Fix Roundcube webmail on windows server with PLESK CP

I would like someone to fix roundcube webmail problem on my windows 2003 server with PLESK control panel . I have setup email account on the windows server for 2 of the domains hosted but I cannot access the emails . I would like you to fix the problem so that I can setup email accounts for any domain I setup on the windows server. Note: Please provide references or links of similar projects executed here in scriptlance to support your bid