i really need help with this its doing my nut in and has been for a while now, im trying to update from 2.0.2 - 2.0.4 but i upload the files in the automatic update thingy ma bob and go to system in admin , and click the link that points me to
http://frizzog.co.uk/forum/install ect... but its like its auto deleting the install folder or when it does stay for a little while it says im using the wrong update version although i know its right as ive checked and downloaded it and tried many of time with no luck

please can someone help me as i really need to update it, and also if i update will i loose members or loose any modifications i have made to my template?
Regards,
Duncan