Yes, you can see your Facebook conversation from both Iphone and PC.
Skype can be used on both a PC and an iPhone to make video calls (See links below).
If you mean video conversations/conferencing, yes. Skype is a very popular app that you can use to talk (with video) directly on your iPhone. Skype can also be installed on any regular PC.
Yes, you can use the iPhone PC cable to copy music from your iPhone to PC.
the ipad will direct the user to the PC website, due to the fact that it is designed to be a web browsing device/
There is no simple fix. Your best bet is cloud computing, that is accessing a virtual PC in the cloud that does support flash. The best solution I've seen for this is an app called AlwaysOnPC, from your virtual PC you can browse flashbased sites, play facebook games from facebook, etc. Their demo gives a good overview www.alwaysonpc.com/FireFox-iPhone-flash-player
DragonVale is only available for Mac iTouch products such as the iPad, iPhone, and iPod Touch. You can find similar games, such as DragonCity, on Facebook.
ive tried on some-one elses PC and its ok but not on my PC
Yes, the iPhone come with a USB cable, the same is used to charge the battery and to connect to a PC or Mac.
no
Through iTunes on your PC or Mac. In there you sync it, with your iPhone.
PC and Iphone.
yes you can install orblive to your PC anda iPhone