A basic table code:
<table>
<tr>
<td style="vertical-align:top;padding-right:10px;">
LINK_1
</td>
<td style="vertical-align:top;padding-left:10px;padding-right:10px;">
LINK_2
</td>
<td style="vertical-align:top;padding-left:10px;">
LINK_3
</td>
</tr>
<tr>
<td style="vertical-align:top;padding-right:10px;">
PICTURE_1
</td>
<td style="vertical-align:top;padding-left:10px;padding-right:10px;">
PICTURE_2
</td>
<td style="vertical-align:top;padding-left:10px;">
PICTURE_3
</td>
</tr>
</table>
Rows go across. This table has two rows. One row for your links, the other for your images.
If you study the code, the tr tag designates Table Rows.
You always need and opening and closing tags. <tag> code between </tag>
(note the "/" in the second of the pair.)
Each row has 3 cells designated by the td tags inside of the table rows.
You can adjust the padding between cells by changing the numbe I've suggested. The padding provides space between cells.
You can adjust the vertical align to top, middle, or bottom.
I suggest that you make your thumbnail pictures 146 px wide so they will fit 3 across in your table.