[Do I need to purchase land to use a skybox?]

I have a skybox I would like to use. Do I have to buy land or can I just find an unoccupied place and set it up?

[Shopping in the Marketplace]

 I posted a while ago about not being able to buy freebies from the marketplace. I still can't get past the checkout screen. Every time I try to check out, it says not enough Linden's. But the total is $0 or I try to use my Linden's and have enough for the total but still getting the same thing. I tried all of the suggestions and am still unable to get past the check out screen. Any more ideas or suggestions? Thanks

[Destination Guide problem]

When I log in ,I can't get the destination guide to show. I've been on for about 2 months so I've got the advanced mode on. Any idea's on the problem? Thanks  I can get the guide page to open but the page stays blank. No matter howlong I keep the destination guide page open ,it stays a blank screen.

[Why can't I check out freebies at the Marketplace?]

I was able to checkout the freebies from the Marketplace.Now I can't. I keep getting to the check out then it said I need to buy more lindens but there is no price. What can I do to fix this or be able to buy the freebies from the Marketplace?