Best client version for 98 client to TS2000

I know you can use the later versions of the TSclient for connecting to a
2000 server, and I have been using the XP version on 2000 and xp for a
while.

When I put this version on 98 the autohide taskbar of the local desktop pops
over the TSclient toolbar, and the alt-tab doesnt work.

What is the best version of TSclient to use to allow alt-tab on the client
as well as not have this taskbar problem.

TIA

Andrew