Help on photo shop light room 1.1

[macro junkie]

hello..i have been taking pics using my light box..using white backgrownd and setting my white balance..i have been suing cs2 but now i have light room...would be be the easiest way to make the backgrownd real white like i do in cs2..heres what i mean

unedited

http://photography-on-the.net/forum/attachment.php?attachmentid=204324&stc=1&d=1189412520

edited in cs2/this is what i want to do but in light room..how do i do it?

http://photography-on-the.net/forum/attachment.php?attachmentid=204322&stc=1&d=1189411599

[th3r0m]

Here is what I did, I adjusted WB, upped the exposure, upped the contrast and dialed back the luminance in the red and green channels a bit.

Specifically - Exposure +89, Strong Contrast, Luminance: Red -18, Green -11. I also used the General Punch preset.

204889