Intuit payment processor extension for CiviCRM follow the instruction to install the extension: http://wiki.civicrm.org/confluence/display/CRMDOC40/Extensions+Admin
Set payment processor as per instuction on civicrm site ie http://wiki.civicrm.org/confluence/display/CRM/Setting+up+Intuit+QuickBooks+Payment+Processor+for+CiviCRM
Do not set 'Support recurring intervals' for recurring contribution as itintervals are not handeled in Intuit.
You need to set the cron link for recurring contribution in crontab as follows.
eg:
For Test: http://YourDomain/sites/all/modules/civicrm/bin/cron?job=run_intuit_cron&is_test=<Istest?>&processor_name=Intuit&name=Username&pass=Password&key=Your Site Key
For Live: http://YourDomain/sites/all/modules/civicrm/bin/cron?job=run_intuit_cron&processor_name=Intuit&name=Username&pass=Password&key=Your Site Key
For more info check : http://wiki.civicrm.org/confluence/display/CRMDOC41/Managing+Scheduled+Jobs