[Webmaster961]

You need to use == and not = inside if statements.

As you want to compare right hand side with left hand side, and not set right hand side to left hand side.

Example:

a = 5 + 6;

This means that a is set to be 5+6 which is 11, so a will be 11

a == 5 + 6;

This checks the value of a to see if it is the value of 5 + 6.

So you should try this:

<if condition="post['fieldxxx'] == 'Xbox 360' ">
    <img src="path.to.image/$post[xbox].gif" alt="" />
<else /> <!-- User must have picked PS3 -->
    <img src="path.to.image/$post[ps3].gif" alt="" />
</if>

Of course you could also incorporate more platforms like this:

<if condition="post['fieldxxx'] == 'Xbox 360' ">
    <img src="path.to.image/$post[xbox].gif" alt="" />
<else />
    <if condition="post['fieldxxx'] == 'PS3' ">
        <img src="path.to.image/$post[ps3].gif" alt="" />
    <else />
        <img src="path.to.image/$post[pc].gif" alt="" />
    </if>
</if>

That should work, but I haven't tested it.

Found it on the vBulletin Manual HERE