Uhhh what the hell happened to my HD's?, A story of my stupidity

Last night i was trying to get rid of windows XP as my secondary os by deleting the partitions it was on by using the boot cd. Well apparently when i started my main OS my 2 secondary hds were gone!? O_o Well i reinstalled XP thinking i may have done something wrong, well i did and when i booted the main OS they showed but...but...but...my data was gone!!!! All my music, files, games, and programs on those drives were gone!!! gone!!! How the hell?!?!?! Is there any way to retrieve it? Please, i would really appreciate the help.

I don't know what exactly happened, but I've heard that XP deletes all data when (un)installing.

when uninstalling Windows XP, you must of Deleted the Partitions.

Check the internals of your computer see how many HDDs you have, if you have one, then you merged all your partitions into one larger partition while deleting everything else.

If you have multiple, there is a chance the data is still there, and it's just disconnected, or you accidentally deleted the partition on it, and it is now a Unpartitioned drive, basically sitting there doing nothing.

Try this:
Start->Run->CMD
diskpart
list disk
select disk x (where x is the number you got from list disk)
list partition

Repeat x times, where x is the number you got from list disk.
I'd tell you exactly, but I don't understand whether you mean 2 partition or 2 hard drives.
Do you see your old partitions? If so, great, reply so I can guide you through the rest of this! If you don't, tough luck, sorry.
Example output