Vista - Window Blinds

I have a bit of a problem, I am using a trial version of Window Blinds, cannot buy it online, need to rely on my Mother to buy it and she won't do it because of having been a victim of credit card fraud not long ago, and so she is adammant that she will not do it again, she won't be persuaded otherwise, so its no good even thinking about going down that route.

So my first question is: As I have a trial version, does this mean that after the time is up my system will automatically revert back to its normal desktop or not?

And secondly if the answer to my first question is yes, then is it available in the shops and if so which ones? I only have access to GAME and Zavvi (known before as Virgin Megastore) other than that, apart from HMV I am stuck.

I currently have what I would say for me is the perfect desktop, the wallpaper and skin downloaded from WinCustomize, I hope that all my searching to find a great looking look for my PC has not been in vain in so much as it will disappear after 30 days or so

Anyone know the answers please?

Cheers

Jekyll and Hyde