One thing I'd like to ad is not to get discouraged , it's only been a week. It's hard to run accurate reports with a weeks worth of data. You might want to reduce the amount of time you offer for the trial,or like most have mentioned, remove the trial all together and see how well your tour converts.
I'd also try lowering the price for a bit until you're confident that you have an abundance of content to offer.
Also you mentioned you couldn't offer live-shows at the moment.
homegrowncams.com is offered for free to webmasters. This might be a nice addition to your site, and will help with retention. Any interactive tool you can offer your members will help keep them longer. Try finding free online games that you can link to as well. Time waster help with retention alot.
Hope this helps
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