Using template to launch an auction

[sparrowsinging]

I use Sellersource to create auction template and launch it into eBay, never had any problems. there seems to be a new eBay Selling template and it won't take the codes from Sellersource.  I enter all the auction information, and when I preview, everything is there but the actual template from Sellersource.  I updated my browser to see if that would help.  I asked Sellersource and they asked me Are you on the "simple" version of the Sell Your Item (SYI) form on eBay?    I don't know what the "simple" version.  how do I get back to the original ebay version I used to create and launch auctions? thank you