hello again!
If you dont have drivers, then u can use DriverMAX software to collect driver from your installed drivers! Download It Here (3.61 MB)
By using this software, u can collect any driver which is installed on ur pc.
Another thing, if you have free enough free space on hard disk to back up a single partition, then free up a partition then break the partition into parts (using disk manager Right Click On My Computer -> Manage -> Disk Management) after partitioning again move all backup data to new windows partition and then use the another un-partitioned space to install Ubuntu!