What I do is, after I render I delete the original BG, and then get the one I want, and then copy and paste my render onto it.

i have to use Paint Because this isn't my Laptop & basicly im not aloud to download anything onto it but if you are using paint then what i do is i use the free hand crop tool to draw around my selected horse then Copy & Paste her onto a seperate paint background document, then fill in anything iv miss with colour picker tool if that makes sence? Just incase any other paint users need help too

thanks I'll try this I wonder how it will turn out *huge smile*

Do you use Paint.NET? Probably not, but I'll explain anyway.

When you have the background up, add a new layer. Make sure the horse you've rendered has an entirely blank background, so you dont have to go through the task of removing the temporary background. Now, find your character file and copy and paste. Then all you have to do is save it and it should look fine

Do you have GIMP? That's probably the easiest program to do this on. If you don't have GIMP, I'd strongly recommend downloading it.

When you're rendering, set a new layer over your screenshot. Then, render the character on the new layer. Once you've done that, delete the background/screenshot layer, and either open the background you want as 'File' - 'Open as Layers', or open the background in a new box, and copy and paste your render into it.