Did you accept a message to convert to Dynamic Disk when you were creating a fifth partition?
You'll need to convert the Disk back to Basic using free Partition Wizard version 4.2 which still has that option available in the free edition: partition wizard 4.2 free.zip - Windows Live
Install and try it now from the Disk tab after backing up your files.
It's likely PW will not want to convert to Basic since you would then have five Primary Partitions. In this case, convert the first partition to Logical using rightclick>Modify>Convert to Logical, click OK, Apply. Then try Disk tab>Convert Disk to Basic.
Once this is done, rightclick H, choose Resize, left click and hold, drag partition all the way to the right, OK.
Next rightclick D and repeat to open up free space next to C.
Finally, rightclick C choose Resize, drag right grey border to the right to take up as much space as you need, OK, Apply.
If you want to add any new partitions, convert D and H to Logical so that you can add as many Logical sub-partitions as desired. You can then convert the first partition back to Primary.