I figured out, by myself since asking didn't help. So many people online asking for help that nobody has time to answer nor had the answers to my questions. Oh well, I shoulda thought of it anyhow.
I installed Mint 7 to my 8GB flash via unetbootin. Then I installed it to my hard drive...then updated, installed wine, downloaded the .exe from pendrivelinux.com for the persistent Linux Mint 7 install. I unarchived it using wine, and then looked inside the .bat for for the fix thing and also the makeboot.bat. I basically figured out what to do via linux commands, since running makeboot and fix.bat thing under wine really does not work at all. I don't have windows, oh well. Then I copied the 4GB.zip casper-rw thing to my 8GB flash drive and typed "7z e 4GB-casper-rw.zip" and it took forever to unzip but now I have a 3.9GB casper file and when I reboot it gives me around that much free space and it IS persistent but when I updated it last time It worked fine until it tried to copy over vmlinuz and then there was some drive error...and I didn't think much of it and when I rebooted got lots of i/o errors or something...couldn't access this sector and that sector and then it stopped booting. Well, I am able to boot fine if I go into 'don't save" or whatever...and then I installed to my hard drive and now I am going to maybe boot up again and test it but my cute female friend is online so gonna chat with her first a bit. haha But yeah, is there a way for Linux Mint 7 to repair or reset itself on after a botched update? I used that mintupdate or whatever, so dunno...guess it didn't like my fairly new Sandisk Cruzer. It saves data fine and stuff...and it has a receding USB plug...so it's definitely not gonna bend...really nice feature. Hmmm and all the data that I copy back and forth from the USB to the HDD and back always stays intact...never been accidentally washed or anything... Any ideas? Just before I put the previews Linux Mint 7 on it I formated it as Fat 32, basically destroyed the partition, recreated it as FAt32 and formatted it as fat32 and then set the flag to boot... No errors or problems. This is a great distro... Thankfully I figured out that interpreting the bat file in my head basically would help me out. I tried Fedora 11, Ubuntu 9.04 (this would work on that too), umm PCLinuxOS2009, umm can't remember the others. Couldn't figure it out, and now I finally figured it out and you know I am glad I found Linux Mint. Really cool interface and fast and I have high hopes for a persistent install. Now, gotta figure out how to use that qemu.exe I got off pendrivelinux.com to boot that thing while I'm in windows. Thanks guys!