I thought they wern't allowed to use the word "Junior" in a job title anymore; maybe that's just here in sunny old England.
Sadly FoxPro is reaching the end of it's life; they recently announced that they would not be producing another version (i.e. v10 would never make it off the starting blocks). Instead, they are looking into porting it over to the .NET framework. VFP is a great language and tool system, but the fact is it has become dated and everyone is hopping on the .NET gravy train!
If you want to be a DBA, then you have a tonne of choices of what platform to go with. If you want my opinion; employers like to see the word Microsoft on peoples qualifications, because, after all, a heck of a lot of people use their products!
But, you've developed in VFP and Access; which suggests more than just database work; perhaps some front-end stuff as well?
Well in that case, the .NET platform is a good place to aim for; it has a great ability to work with data and once again, is very desirable on a CV.
You have a lot to learn, but take it slow. Do not skip straight to .NET if you chose that path; work on some "legacy" platforms, such as classic ASP, get the foundations layed properly before becoming a GUI school-kid