Does your SharePoint Workflow look like this?

bad workflow design

Then you need to get more information!  Here's a list of links after my SharePoint Workflow for Developers webcast today.

SharePoint Workflow introduction

https://office.microsoft.com/en-us/sharepointdesigner/HA101005871033.aspx

Create a workflow in SharePoint designer

https://office.microsoft.com/en-us/sharepointdesigner/HA101005911033.aspx

SharePoint Workflows

https://msdn2.microsoft.com/en-us/office/bb421687.aspx

Create a simple workflow

https://blah.winsmarts.com/2006-8-SharePoint_2007__Creating_a_simple_non-human_Worfklow.aspx

Differences Designer vs. VS

https://msdn2.microsoft.com/en-us/library/ms414613.aspx

https://msdn2.microsoft.com/en-us/library/ms461944.aspx

Example SPS workflow w/ screenshots

https://weblog.vb-tech.com/nick/archive/2007/02/25/2207.aspx

Custom Office SharePoint activities from CodePlex

https://www.codeplex.com/OWA/Release/ProjectReleases.aspx?ReleaseId=5114

Infopath with Workflow

https://www.cubido.at/Blog/tabid/176/EntryID/132/Default.aspx

InfoPath training on MSDN

https://msdn2.microsoft.com/en-us/library/bb335271.aspx

Best practices for WF - Jon Flanders' Blog

https://www.masteringbiztalk.com/blogs/jon/