I use SQL Server to import data from Access databases. Be aware that it won't import your keys or relationships- you'll need to recreate those.
Your VBA code is specific to Access. You'll need to rewrite it in VB.NET.
The Access queries are probably going to cause you the most trouble. Simple ones can be converted with the Upsizing Wizard, but the more complex ones will have to be rewritten in SQL.
Also note SQL Server objects follow different naming conventions. An Access table is typically prefixed with tbl, SQL tables typically aren't named with a prefix.