1. Make sure you merged all overrides correctly (see http://www.livejournal.com/tools/memori
2. Make sure your HTML/overrides are correct (see FAQ #189).
3. Make sure you defined a website in your user info, especially if you are making a sidebar layout.
Note that 95% of the time, one (or more) of these 3 things is the problem.
Please do not ask for help here. Not only am I no longer a mod in this community, but you should be making your own post for help, following the community rules, in the first place. :)