What brokerage can communicate with wealth lab 4 and 5.1?
How can I connect the wealth lab with the brokerage? As I am just using the trial version , can the trial version connect with the brokerage? As I only see the testing account. Thank you.

Regarding broker adapter support in Wealth-Lab Developer 5

For WLD4 (only), you can build a broker adapter yourself or hire a programmer for this job:
Wealth-Lab Developer Broker Adapter API

So, Does fidelity support wealth-lab 4 and 5.1? How about Interactive broker?

Fidelity supports Wealth-Lab Pro (for U.S. and Canadian residents only). Support for IB exists for those legacy Developer 3/4 users who purchased the software before June 2004. For other WLD 4 users, auto-trading with IB existed as a (paid) option until Finantic, the developer of IBData2, pulled it out in the very end of 2008. However, as I said, you're free to build an adapter for WLD4 (which is free for a limited time with a purchased copy of WLD5.

And as already mentioned in the FAQ, if you're motivated enough, it's not impossible altogether to program a solution that would connect WLD to any broker that has an API (COM, .NET, WebService etc.)

Hi, I have the same problem which I would like to solve and don't have time to program it myself. Has anyone this API available for sale (WL4 developer for IB, Windows XP)? Thanks.