How to use cydia after jailbreak on ios 6?

I recently jailbroke my iphone 4 (running ios 6) and followed the steps to install cydia. One I did such i open cydia and I keep getting the error "The method driver /usr/lib/apt/methods/http could not be found" I did some google searches and it said that I needed to edit the name of the http file in the directory but the http file isn't even in the directory, does anyone have the http file I can use to add to the directory or something? Any help would be greatly appreciated.

IPhone 3GS 32GB Software Problem?

IPhone 3GS Software Problem?
I have recently purchased an iPhone 3gs 32gb with a suspected software problem. ( simple solution or so i thought ). Turns out it will only turn on when connected to a power source. Then i plug it into my PC and it starts up but as soon as i open up iTunes it won't connect and disappears and turns its-self off. As i'm browsing the device i notice tiny white specs which i'm thinking could be water damage and has the traditional wear ( the crack on the charging point ) apart from this it is in great condition. Also looks like it may have been opened as the screws down the bottom look lose

This is the listing: http://www.ebay.co.uk/...1439.l2649

Fixes, Problem, etc. Please

Frozen screen iPhone and I can't do a hard reset. What can I do?

I tried to link my Facebook in the settings today and the Facebook is stuck on verify. I can exit the settings and work the phone fine but if I go into settings all I see is the Facebook verifying screen. I can't do a hard reset because my phone's lock button is stuck. Is there anything I can do? I might need to access the settings tab. Scratch that. I just used assistive touch and went to make a new gesture by accident and it now stuck on that on the settings thing. It is unresponsive is there anything I can do please?

Added (1). I just want to clarify the entire phone still works. I can do everything as normal but when I click the settings tab I'm greeted with the create new gesture screen and before that the verifying Facebook screen. I'm currently hoping it will just sort it self out. :L

Added (2). The screen has gone back to the settings menu but is still unresponsive.

When will iPhone 5s be in stock?

16GB, AT&T, White. We didn't get a chance to pre order online so we were wondering when they might be in stock again. Hopefully at a bestbuy in northern VA?

Transfer messages from Iphone to PC?

So I've been being harassed by a co-worker through text messages for the last month or so. I want to take it to my boss but I want to bring a physical copy of it (not just the phone) and I want to back it up to make sure I don't lose the evidence. My phone is not jailbreaked and I'm hoping to not pay money for a program I will only use once. Does anyone have any suggestions?

(also, I have AT&T, do they keep the text message for a certain time? I'm just worries that something will happen to the messages… They'll be deleted or something)

Iphone in fridge for 15 minutes?

I put my iphone 4s in fridge to cool it down as i'm having Wi-Fi problem so as thousands other people who'd upgraded to iOS6. Now i haven't turned it on because I see that it is sweating after bringing it out. The time it was in fridge was like 12-14 n max 15 minutes. So if I turn it on now will it damage or anyway void my warranty?