It's no bother, A|T! I'm not the world's greatest at this stuff (LEXS has that title!), but I've learned a ton just reading through this thread, among others, so I'll see if I can help you out.
It sounds like you're running 4.2.1, correct? If so, I don't think there's a way you CAN set the wallpaper from the photo roll. I believe Apple changed something in 4.2.1 that doesn't allow this anymore, unfortunately. I'm still on 4.0, so I can do it. To change your wallpaper, the only workaround that I know of for 4.2.1 is to ssh into the particular theme folder and replace the LockBackground.png with another wallpaper that you want to use (and name the new wallpaper LockBackground.png). I don't think there's another way to do it for now.
When you open the Wallpaper.html file, towards the top, you'll see this line:
<div id="Layer"><img src="/private/var/mobile/Library/SpringBoard/LockBackground.jpg" class="stretch"/></div>
Change it to:
<div id="Layer"><img src="LockBackground.png" class="stretch"/></div>
Now you'll be able to put your own file in the Wallpaper.html as the LockBackground.png and it should show up.
As for the Fahrenheit and Celcius problem, you need to do the reverse of what I posted in this post a couple of pages back:
https://forums.macrumors.com/showpost...postcount=4830
I was having the opposite problem you're having. I needed it to show the "F", but it would only show the "C", even though the temp was in Fahrenheit.
The short of it is this...ssh into the theme folder and open the Wallpaper.html file. Way down towards the bottom, in line 1511, you'll see this:
document.getElementById("temp").innerHTML=tempValue+ "°f";
At the end of that line, you'll notice there's a "degree f" (although when I open that file in WinSCP it doesn't show the degree symbol, but something like %174f). Simply change the "f" to a "c" and it should fix the problem. Respring and it should work.
The line should look like this after you change it:
document.getElementById("temp").innerHTML=tempValue+ "°c";
Now the C for Celcius should show up after the temp.
Hope this helps!
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