Hi FrankenBoot,
We will add support for any management company that makes the required "Open Financial Exchange" (OFX) server available. We support all of them that we're aware offer this capability. This OFX server is an open standard, and makes it possible for you to use 3rd party programs to access your transaction/position data in an automated manner. We have a FAQ on this
here.
If your broker doesn't offer an OFX server, you may be able to "download" your transaction history from their website, and then "import" that into Fund Manager. You wouldn't use the New Portfolio Wizard in this case. You would just use "File / Import / Transactions / <File Format>...". Your broker may make a download available in either OFX, QIF, or CSV/TXT format, all of which you can import into Fund Manager. Given a choice between formats, the OFX format is the easiest, followed by QIF, and then CSV/TXT.