Yes you do. That is a requirement.
If you have CFW and the program runs i would say that you download from a bad site you can download the latest version here http://sickmods.oxyhost.com and register and search for it its psptube 2.0 and if you join please don't forget to say that wethegreenpeople sent ya thanks!
the best firmware is 5.03. if you go to pspslimhacks.com, then look for chcikHEN R2 it will help run homebrew on your psp. for example psptube (youtube for psp cfw)
yes
You can not install a flash player on to your psp unless you have CFW if you have CFW you can install psptube to watch youtube and some other flash players too watch flash videos you can go to this site http://sickmods.oxyhost.com and ask this question in the n00b area and we will answer your question ASAP and give you direct links to everything you need to get CFW and if you already have it to get a flash player
Yes you will need a Pandora battery and a magic memory stick to get cfw.
No it is not illegal but to get it you need custom firmware which causes controversy. If you use Custom Firmware to use applications like PSPtube called homebrew it is legal but if you use it to play pirated games then it is illegal.
You can get it from megaupload.com and download it and if you want to khow how to install it go to youtube.com and type in how to install psptube on to a psp.
You can hardmod your battery or soft mod it then you need an MMS you can find all the tools to get CFW from this site http://sickmods.oxyhost.com and make sure you can get CFW don't forget to say that wethegreenpeople sent ya
hey dont worry after black screen means that it is in service mode which means it goes black. just put in your regular battery and see if it works if it doesnt it means its bricked. when you get the chance upgrade your psp to 5.03 ofw then get chickHEN R2 whick will get you to chickHEN R2 5.03 cfw. you can finally get emulators if you wanted to, or get psptube which can get you to watch youtube on your psp
Yes you do. I highly recommend installing CFW because there are a lot of advantages to it. Just be careful if you do decide to.
Yes. You need custom firmware.
In order to get CFW you need a few things a memory stick(I suggest one with at least 1G of memory). A USB cable for your PSP or be able to stick your memory stick in your computer. Lastly you need PSP 1000. Some psp CANNOT get CFW because of their motherboards. Most PSP 2000's can get CFW, but at the time when I got CFW no PSP 3000's could get it but now some can. I'm pretty sure not PSP go's can get it. Also only some firmware can get CFW, so don't update it. Any questions go to http://pcconsoleforum.0fees.net