jnrs your url is wrong on your data directory you have it spelled dat NOT data
Musc integration is as simple as inputting the proper user database credentials in the config portion of install running through and selected SMF 1 integration and then answering all the questions asked properly. Like for instance with SMF you definately need to put the proper full cookie name where asked on step 4 if you want them integrated as far as login
without knowing exactly what your issue is I cant comment