Hi Sykopath
Do you want to keep your extended partition or not?
If you dont then use Disk Druid to delete it - just click in side the graphical representation of it and click the delete button.
If you do want to keep it youll only have 5 gig for your Red Hat install - this is enough , dont worry
If your going to manually partition the 5 gig then youll need a
- Root -
- Swap - no more than twice your current RAM
Rememeber the partitions must be contiguos - ie no spaces between them - fill up the whole 5 gig first with the Root partition then re-size it using "Edit" - then put in a Swap partition at the very end.
Mount points in this context are simply places in the filesystem where these partitions are going to be accessed ie you're associating partitions with places in your filesystem.
re-post if there are any problems