I have followed the instructions on the help menu but still cannot get my fields to appear side by side.
You read through the "Side by side Layout" section here?: http://help.adobe.com/en_US/formscentral/using/WSd789abd336388b1642c7fce012da94afe4f-8000. html#WS650ad25eb41d10fc49da303c13bf81f328f-8000
You can change the layout of your existing fields by dragging and dropping them to the right (or left) of other fields. Drag a form field by clicking on the far left side of the field and and holding the mouse button down while you move/drag the field over to the right/left and up/down to where you want it.
When you have a field selected that does not have other fields next to it, there is a "+" sign next to the field to bring up a toolbar to the right of the field which will add an adjacent field. You can also right click on a field and select "Insert Beside".
There are some fields that cannot be laid out in the side by side layout (they require an entire row), the "Rating Scale", "Page Break" and "Attachment" fields require an entire row.
Hope this helps. One question, are you using the online web site or the FormsCentral desktop application included with Acrobat XI?