windows vista oem download freeWindows 7 Install Problem

I am currently running Windows Vista Home Premium on a 3 year old Dell Inspiron.

I recently bought a copy of Windows 7 from The Ultimate Steal and downloaded the installation to my desktop. Upon trying to install however, when it asks where I would like to install, it lists four places:

Disk 0 Partition 1 OEM (Reserved)
Disk 0 Partition 2: RECOVERY(D:) (Primary)
Disk 0 Partition 3: OS (C:) (System)
Disk 0 Partition 4: MEDIADIRECT (Logical)

All of these which the installer says are not places where windows 7 can be installed. I get the following messages for each:

Partition 1: "Windows cannot be installed to this hard disk space. Windows must be installed to a partition formatted as NTFS.

Windows cannot be installed to this hard disk space. The partition was reservwindows vista oem download freeed by the computer's Original Equipment Manufacturer (OEM)."

Partition 2: "This selected partition requires at least 5722 MB of free space."

Partition 3: "This selected partition requires at least 6367 MB of free space."

Partition 4: "Windows cannot be installed to this hard disk space. Windows must be installed to a partition formatted as NTFS.

Windows cannot be installed to this hard disk space. The partition is of an unrecognized type."

I get that Partition 2 or 3 are probably usable, but just need more space. I just don't know how to go about doing that. Do I need to go ahead and start deleting all my files? (I have them backed up on Mozy) I thought that Windows 7 would go through and do that. I'm confused. Could anyone give me some poinwindows vista oem download freeters? I would really like to get this installed ASAP while I have time to reinstall and set up my computer completely.
I suggest you not to delete your files. Instead if you have vista service pack 1 installed you can upgrade your OS.By doing it you won't need to delete your old files.
I Also same PRO. but when i use 4 partition Window xp CD I survive from it .....SO i SUGGEST U MAKE PARTITION & FORMAT BY WINDOW XP CD........!!!!!!!!!!!!!!!!......THAN INSTALL WINDOW 7.......................!!!!
Hi, I actually came across the same problem. The solution is to merge all the partitions together and then deleting the recovery partition. After that your windows 7 should install fine :) hope that helps.