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Ive just downloaded the El Capitan update for my mac, but now its asking for Java SE 6 Runtime that worked perfectly before El Capitan. Ive checked every forum and deleted and tried updating the old Java from the Apple Support it just doesn't allow it to be installed??? Someone HELP!

When i open iBooks, it show me a windows to login with my icloud ID. When i press enter, the windows disappears and become gray, with the name window and a spinning wheel (not when it crash, but when it's thinking/connecting). Then it comes back with the same login screen and the text An unknow error occured. When i close this window, iBooks hang and i have to force close the program.Console info:09-06-15 19:32:01,755 storeaccountd[567]: ADI: { Connection = keep-alive; Content-Length = 20; Content-Type = application/x-dmap-tagged; Date = Tue, 09 Jun 2015 17:31:59 GMT; Strict-Transport-Security = max-age=31536000; apple-timing-app = 5 ms; server-cloud-daap-version = 1.0; x-apple-application-instance = 404602; x-apple-application-site = ST11; x-apple-jingle-correlation-key = P6GIJJU424NU6YWNKOWSGTFHTI; x-webobjects-loadaverage = 0;}09-06-15 19:32:01,000 kernel[0]: Sandbox: iBooks(1543) deny(1) mach-lookup com.apple.dock.appstore09-06-15 19:32:01,763 iBooks[1543]: Could not fi

After installing El Capitan my Apple Magic Mouse point and click works but no longer scrolls. Any fix?

Today, the day after the new developer program was released by apple, I was trying to enroll, but after going through the review page, it said unable to precess your request. I'm not sure what to do since it was an unknown error and I need to enroll in the new program since my previous membership expired. Any help is appreciated, thank you.